Meaning: 'Device' refers to a piece of equipment designed for a specific purpose, in this case, safety.

Wrong options:

• trialled: 'Trialled' is a verb that indicates testing something, which does not fit as a noun in this context.
• avoidance: 'Avoidance' is a noun that refers to the act of keeping away from something, which does not relate to safety equipment.
• exit: 'Exit' is a noun that refers to a way out, but it does not specifically denote a safety mechanism.
• sinking: 'Sinking' is a gerund that describes the action of going down in water, which does not fit as a noun for safety equipment.
• fashion: 'Fashion' is a noun that refers to a manner or style, which does not relate to safety equipment.
• strategies: 'Strategies' is a plural noun that refers to plans of action, which does not fit the context of a safety device.

Correct answer: originally

Explanation: The adverb 'originally' indicates the time when the invention occurred, fitting grammatically and contextually as it modifies the verb 'invented.'

Meaning: 'Originally' means at the beginning or in the first instance.

Wrong options:

• trialled: 'Trialled' is a verb that does not fit grammatically as it does not modify the action of inventing.
• avoidance: 'Avoidance' is a noun that does not fit as it does not describe the manner of invention.
• exit: 'Exit' is a noun that does not relate to the context of invention.
• sinking: 'Sinking' is a gerund that does not fit as it does not describe the time of invention.
• fashion: 'Fashion' is a noun that does not modify the verb and does not fit in this context.
• strategies: 'Strategies' is a plural noun that does not relate to the context of the invention.

Correct answer: exit

Explanation: The verb 'exit' fits grammatically as it indicates the action passengers take when using the escape slide. It aligns with the context of safely leaving the vessel.

Meaning: 'Exit' means to leave or go out.

Wrong options:

• trialled: 'Trialled' is a verb that does not fit as it does not describe the action of leaving the ship.
• avoidance: 'Avoidance' is a noun that does not relate to the action of leaving.
• originally: 'Originally' is an adverb that does not fit as it does not describe an action.
• sinking: 'Sinking' is a gerund that describes an action but does not fit as a verb for leaving.
• fashion: 'Fashion' is a noun that does not describe the action of exiting.
• strategies: 'Strategies' is a plural noun that does not relate to the action of leaving.

Correct answer: sinking

Explanation: The gerund 'sinking' fits grammatically as it describes the action that poses a danger to the vessel. It aligns with the context of discussing emergencies at sea.

Meaning: 'Sinking' refers to the process of going down below the surface of water.

Wrong options:

• trialled: 'Trialled' is a verb that does not fit as it does not describe a state of danger.
• avoidance: 'Avoidance' is a noun that does not relate to the action of a vessel in danger.
• exit: 'Exit' is a noun that does not describe the condition of the vessel.
• originally: 'Originally' is an adverb that does not fit as it does not describe a state of danger.
• fashion: 'Fashion' is a noun that does not relate to the condition of the vessel.
• strategies: 'Strategies' is a plural noun that does not fit the context of a vessel's danger.

Correct answer: fashion

Explanation: The noun 'fashion' fits grammatically as it describes the manner in which passengers evacuate. It aligns with the context of comparing evacuation methods.

Meaning: 'Fashion' refers to a manner or way of doing something.

Wrong options:

• trialled: 'Trialled' is a verb that does not fit as it does not describe a manner of evacuation.
• avoidance: 'Avoidance' is a noun that does not relate to the manner of evacuating.
• exit: 'Exit' is a noun that does not describe the manner of evacuation.
• originally: 'Originally' is an adverb that does not fit as it does not describe a manner.
• sinking: 'Sinking' is a gerund that describes an action but does not fit as a manner of evacuation.
• strategies: 'Strategies' is a plural noun that does not fit the context of describing a manner.