Final answer:
The sentence that uses the underlined academic vocabulary word incorrectly is A. Sit down and make yourself compatible while I fix you some tea.
Step-by-step explanation:
The sentence that uses the underlined academic vocabulary word incorrectly is A. Sit down and make yourself compatible while I fix you some tea. The word 'compatible' is used incorrectly in this sentence. 'Compatible' means able to exist or work together without conflict, but in this context, it does not make sense to say 'make yourself compatible'.
In the other sentences, the word 'compatible' is used correctly. For example, in sentence B, 'compatible' is used to describe having a similar world view, which makes two people able to get along well. Sentence C uses 'arbitrary' correctly to mean something that is not required but appreciated. And sentence D uses 'diminish' correctly to mean decrease in this context.
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