Final answer:
An allusion is a figure of speech that makes a reference to something familiar. The sentence that contains an allusion is 'My wife has a smile that would rival the Mona Lisa.'
Step-by-step explanation:
An allusion is a figure of speech that makes a reference to a person, place, event, or work of art. It is used to enhance the meaning of a sentence by connecting it to something familiar. The sentence that contains an allusion is 'My wife has a smile that would rival the Mona Lisa.' In this sentence, the mention of the 'Mona Lisa' is an allusion to the famous painting by Leonardo da Vinci, implying that the subject's smile is similarly captivating.
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