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Bunuel
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Bunuel
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I think this is a high-quality question and I agree with explanation.
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I think this is a poor-quality question and I don't agree with the explanation. I don't think D is the answer. It cannot be inferred from the passage that the author accepts BF1. Coming to BF2, it clearly contradicts BF1 as it gives a counterexample of a technology that does not become less effective with time. So the answer should be A.
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