I'll give you a question, please answer with step-by-step reasoning process.
Of the following two sentences, which one is against common sense?\nOptions:\n- Sentence A: "he took his dog to a vet for treatment"\n- Sentence B: "he took his dog to a chef for treatment"\n

Sentence B
Chefs do not deal with the healing of animals but they are in the business of feeding people.

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Thus, the answer is Sentence B