A pun utilizes wordplay and multiple meanings of words for humor. Example: 'By making cupcakes for them, I can kill two birds with one stone.'
A pun is a form of wordplay that exploits multiple meanings of a word or words that sound similar but have different meanings. In the context of the sentences provided, option B, 'By making cupcakes for them, I can kill two birds with one stone,' is an example of a pun as it plays on the literal meaning of 'kill two birds with one stone' while also implying accomplishing two things at once.
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