Explanation

A) This one is a bit tricky because a quick reading could lead you to B and C as answers but the OA is A and B. C is not the right one because is true, it will add only another hypothesis to the already crowded literature without creating a clear look inside the dispute.

B) Hre the word sensational actually means "a fanfare" but without a real fundamental or consistency truth.
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here the answers have two tones: one positive and one negative. You should be able to understand which side is correct and then pick the right answer.

Now, Consequently, both the public and the scientific community have often been misled by widespread dissemination of sensational but weakly founded hypotheses.

Focus on the bold part of the sentence. As such, excellent and eminent (which are positive) are wrong. horrifying is out of scope from the context of the sentence AND the passage.

False, we do not know because we are talking about hypothesis, which could be true or not. So we do not know for sure if they are false.

A is the best fit

Regards
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