Meaning: 'Length' refers to the measurement of something from end to end.

Wrong options:

• arrival: 'Arrival' is a noun that refers to the act of coming to a place, which does not relate to the physical characteristics of bar codes.
• checkout: 'Checkout' is a noun that refers to the process of paying for goods, which does not fit in the context of describing bar code dimensions.
• aware: 'Aware' is an adjective that describes knowledge or consciousness of something, which does not fit grammatically or contextually.
• encoded: 'Encoded' is an adjective that describes information that has been converted into a coded format, which does not fit as a physical measurement.
• remarkable: 'Remarkable' is an adjective that describes something worthy of attention, which does not fit as a noun in this context.
• application: 'Application' is a noun that refers to the act of putting something into operation, which does not describe a physical characteristic of bar codes.
• either: 'Either' is a conjunction or adjective used to indicate a choice between two options, which does not fit grammatically in this context.

Correct answer: checkout

Explanation: The term 'checkout' is a noun that refers to the process of paying for goods in a store, which fits contextually as it describes the system Joe Woodland was asked to design. It aligns with the overall theme of retail and sales.

Meaning: 'Checkout' refers to the area or process where customers pay for their purchases.

Wrong options:

• arrival: 'Arrival' refers to the act of coming to a place, which does not relate to a system in a supermarket context.
• length: 'Length' is a noun that describes a measurement, which does not fit the context of a system for processing sales.
• aware: 'Aware' is an adjective that describes knowledge of something, which does not fit grammatically or contextually.
• encoded: 'Encoded' is an adjective that describes information that has been converted into a coded format, which does not fit as a noun for a system.
• remarkable: 'Remarkable' is an adjective that describes something worthy of attention, which does not fit as a noun in this context.
• application: 'Application' is a noun that refers to the act of putting something into operation, which does not describe a system for processing sales.
• either: 'Either' is a conjunction or adjective used to indicate a choice between two options, which does not fit grammatically in this context.

Correct answer: encoded

Explanation: The word 'encoded' is an adjective that describes information that has been converted into a coded format, which is appropriate in the context of discussing the purpose of bar codes. It fits grammatically as it modifies 'information' effectively.

Meaning: 'Encoded' means transformed into a coded format for storage or transmission.

Wrong options:

• arrival: 'Arrival' is a noun that refers to the act of coming to a place, which does not relate to the type of information stored in bar codes.
• length: 'Length' is a noun that describes a measurement, which does not fit the context of describing the nature of information.
• checkout: 'Checkout' is a noun that refers to the process of paying for goods, which does not describe the type of information in bar codes.
• aware: 'Aware' is an adjective that describes knowledge or consciousness of something, which does not fit grammatically or contextually.
• remarkable: 'Remarkable' is an adjective that describes something worthy of attention, which does not fit as a description of information.
• application: 'Application' is a noun that refers to the act of putting something into operation, which does not describe the nature of information stored.
• either: 'Either' is a conjunction or adjective used to indicate a choice between two options, which does not fit grammatically in this context.

Correct answer: application

Explanation: The word 'application' is a noun that refers to the act of putting something into operation, which fits contextually as it describes the practical use of the bar code. It aligns with the overall theme of discussing the invention's impact.

Meaning: 'Application' refers to the practical use or relevance of something.

Wrong options:

• arrival: 'Arrival' refers to the act of coming to a place, which does not relate to the practical use of bar codes.
• length: 'Length' is a noun that describes a measurement, which does not fit the context of discussing practical use.
• checkout: 'Checkout' is a noun that refers to the process of paying for goods, which does not describe the practical use of the bar code.
• encoded: 'Encoded' is an adjective that describes information that has been converted into a coded format, which does not fit as a noun describing practical use.
• aware: 'Aware' is an adjective that describes knowledge of something, which does not fit grammatically or contextually.
• remarkable: 'Remarkable' is an adjective that describes something worthy of attention, which does not fit as a noun in this context.
• either: 'Either' is a conjunction or adjective used to indicate a choice between two options, which does not fit grammatically in this context.

Correct answer: arrival

Explanation: The word 'arrival' is a noun that refers to the act of coming to a place, which fits contextually as it describes the introduction of laser gun technology. It aligns with the overall theme of discussing advancements that enabled the use of the bar code.

Meaning: 'Arrival' refers to the coming into existence or use of something.

Wrong options:

• length: 'Length' is a noun that describes a measurement, which does not fit the context of discussing the introduction of technology.
• checkout: 'Checkout' is a noun that refers to the process of paying for goods, which does not describe the introduction of technology.
• encoded: 'Encoded' is an adjective that describes information that has been converted into a coded format, which does not fit as a noun in this context.
• application: 'Application' is a noun that refers to the act of putting something into operation, which does not describe the introduction of technology.
• aware: 'Aware' is an adjective that describes knowledge of something, which does not fit grammatically or contextually.
• remarkable: 'Remarkable' is an adjective that describes something worthy of attention, which does not fit as a noun in this context.
• either: 'Either' is a conjunction or adjective used to indicate a choice between two options, which does not fit grammatically in this context.