ExplanationSince the people in the sentence cannot develop a logical argument, they might be offering an empty, meaningless statement instead to excuse their behavior. The word saying would be appropriate for the blank. Fallacy might seem like a suitable answer, but there aren’t any clues in the sentence to prove that the statement is false.
Allusion is a reference to something, a query is a question, and a waiver is the relinquishment of something. None of these words have the meaning of saying. Maxim and proverb are both meaningful sayings, and so choices (C) and (F) give you appropriate, equivalent sentences.
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