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Repeat the question stem ... "having provided context, articulate a multiple choice question that demands the reader go beyond memorization and requires critical thinking:"
Answer B is better. Explain why A is an incorrect or partially correct reponse, and explain the concept of A (or what the question would need to ask to make A the correct response.
The best answer. Explain why it is the correct response and reinforce the learning concept.
Another incorrect response. An alternative to delineating each correct and incorrect response is to have a single paragraph that presents all answers in an explanatory paragraph.
Any references for further reading.