Final answer:
The question aims to fill the blank in a sentence with an appropriate word. In the given context, 'Since my apartment is in such close _________ to my office, I usually walk to work', the right term to use is 'proximity', meaning closeness.
Step-by-step explanation:
This is a scenario related to English language usage or vocabulary. In the blank space in the sentence, 'Since my apartment is in such close _________ to my office, I usually walk to work', the word that best fits is proximity. Proximity means nearness in space, time, or relationship. So, in this case, the person's apartment is close to their office – in other words, their apartment and office are in close proximity. Neither the options 'his next door neighbor', 'someone who lives three floors up in the apartment building', or 'someone from across the street' fit into the context of the sentence.
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