A.I. Explanation:

Correct answer: enabling

Explanation: The word 'enabling' fits grammatically as it serves as a present participle that indicates the action of allowing or making something possible. It aligns contextually with the sentence, suggesting that freeing up space in working memory allows us to manipulate and combine facts effectively.

Meaning: 'Enabling' means making something possible or facilitating an action, in this case, allowing us to manipulate and combine facts.

Wrong options:

• taking: 'Taking' implies an action of receiving or acquiring, which does not fit the context of allowing manipulation.
• stable: 'Stable' describes a state of being steady or unchanging, which does not relate to the action of facilitating memory use.
• making: 'Making' suggests creating or forming, but does not convey the sense of allowing or enabling that is needed in this context.

Correct answer: Therefore

Explanation: 'Therefore' is a logical connector that indicates a conclusion drawn from the previous statement. It fits grammatically and contextually, linking the idea of memorizing aiding understanding to the conclusion that it creates a necessary framework.

Meaning: 'Therefore' means as a result or for that reason, indicating a logical consequence of the previous statement.

Wrong options:

• Nevertheless: 'Nevertheless' suggests a contrast or exception, which does not fit the context of drawing a conclusion.
• Thereby: 'Thereby' indicates a means or method, which does not appropriately connect the ideas as a conclusion.
• Provided: 'Provided' implies a condition, which does not logically connect the preceding statement to the conclusion.

Correct answer: digest

Explanation: The word 'digest' fits grammatically as a verb that means to process or understand information. Contextually, it aligns with the idea of comprehending what we find on the internet, indicating the need for understanding facts.

Meaning: 'Digest' means to process or understand information, particularly in the context of learning or comprehending material.

Wrong options:

• obtain: 'Obtain' means to acquire or get, which does not convey the sense of processing or understanding needed here.
• consume: 'Consume' typically refers to using or eating something, which does not fit the context of understanding information.
• acquire: 'Acquire' means to gain or obtain, but does not imply the processing or understanding aspect that 'digest' conveys.

Correct answer: remove

Explanation: The word 'remove' fits grammatically as a verb indicating the action of taking something away. Contextually, it aligns with the idea that technology might lessen the need to remember facts.

Meaning: 'Remove' means to take away or eliminate, suggesting that technology could lessen the necessity of remembering facts.

Wrong options:

• cancel: 'Cancel' implies stopping something that is planned, which does not fit the context of necessity in memory.
• delete: 'Delete' refers to erasing something, which does not convey the broader concept of necessity in remembering facts.
• take: 'Take' is a general term that does not specifically convey the action of eliminating necessity.

Correct answer: more

Explanation: The word 'more' fits grammatically as a comparative adverb that indicates a greater degree. Contextually, it emphasizes the complexity of the world we live in compared to a simpler state.

Meaning: 'More' indicates a greater amount or degree, in this case, referring to the increased complexity of the world.

Wrong options:

• much: 'Much' is used with uncountable nouns and does not fit grammatically in this comparative context.
• many: 'Many' is used with countable nouns, which does not apply here as we are discussing complexity in a general sense.
• must: 'Must' indicates necessity or obligation, which does not fit the comparative context of describing complexity.