Meaning: 'Case' refers to a particular situation or example, indicating that the statement is about a specific circumstance regarding memory and technology.

Wrong options:

• issue: The word 'issue' implies a problem or concern, which does not fit the context of discussing a situation regarding memory and technology.
• matter: While 'matter' can refer to a subject of discussion, it is less specific than 'case' and does not convey the same sense of a specific example.
• instance: 'Instance' refers to a single occurrence, which is too narrow in meaning compared to 'case' that encompasses broader situations.

Correct answer: justify

Explanation: The verb 'justify' is appropriate here as it means to provide reasons or explanations for one's actions or beliefs, which fits the context of individuals needing to rationalize their attachment to technology. It aligns well grammatically and contextually with the sentence.

Meaning: 'Justify' means to show or prove to be right or reasonable, indicating that people feel the need to explain their reliance on technology.

Wrong options:

• confirm: 'Confirm' means to verify or validate something, which does not fit the context of explaining one's attachment to technology.
• approve: 'Approve' implies giving consent or agreement, which does not align with the need to rationalize or explain behavior.
• assert: 'Assert' means to state a fact or belief confidently, but it lacks the nuance of providing justification or reasoning.

Correct answer: vitally

Explanation: The adverb 'vitally' fits grammatically and contextually as it emphasizes the essential nature of remembering facts, indicating that it is crucially important. It modifies the adjective 'important' effectively, enhancing the meaning of the sentence.

Meaning: 'Vitally' means in a way that is absolutely necessary or essential, highlighting the significance of memory despite the availability of information online.

Wrong options:

• completely: 'Completely' suggests totality but does not convey the same sense of necessity as 'vitally' does in this context.
• largely: 'Largely' implies a significant extent but lacks the urgency that 'vitally' conveys regarding the importance of memory.
• totally: 'Totally' indicates entirety but does not capture the critical aspect of importance that 'vitally' emphasizes.

Correct answer: Although

Explanation: The conjunction 'Although' is suitable here as it introduces a contrast between the vastness of long-term memory and the limitations of working memory. It sets up a complex sentence structure that is grammatically correct and contextually relevant.

Meaning: 'Although' is used to introduce a statement that contrasts with or seems to contradict something that has been said previously, indicating a nuanced relationship between the two ideas.

Wrong options:

• Despite: 'Despite' is a preposition that would require a different sentence structure and does not fit grammatically at the beginning of this clause.
• Owing: 'Owing' is not a conjunction and does not serve to contrast ideas, making it grammatically incorrect in this context.
• Since: 'Since' implies causation rather than contrast, which does not align with the intended meaning of the sentence.

Correct answer: overloaded

Explanation: The word 'overloaded' fits grammatically as a past participle that describes the state of working memory being burdened with too much information. It aligns contextually with the idea of memory limitations, making it the most appropriate choice.

Meaning: 'Overloaded' means to be burdened with too much, indicating that working memory cannot handle excessive information effectively.

Wrong options:

• overrated: 'Overrated' means to have a higher opinion of something than is deserved, which does not fit the context of memory limitations.
• overdone: 'Overdone' implies something has been done excessively, which does not accurately describe the state of working memory in this context.
• overrun: 'Overrun' suggests being invaded or exceeded in number, which does not convey the intended meaning related to memory capacity.