Critical Reasoning (CR) | Irradiation of food by gamma rays would keep it from spoiling

I approached it from a slightly different perspective - I really tried to outline and think through why B is the correct answer, so apologies if this is long:

It was easy to eliminate E) because the question stem explicitly states "The opponent’s argumentproceeds by:", meaning we should be concerned with the argument that comes immediately after the question. If you read the opponent's argument, it looks as if it's made from two statements put together. "Moreover" signals
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