We're looking for the answer choice that explains what the passages have in common. If you find yourself often struggling with this question type on RC passages with two mini passages, one strategy you could try is reading Passage A first and looking at the questions before moving to Passage B. This will allow you to eliminate answer choices if they conflict with the information in Passage A and can help you keep the content of each passage separate.
If you were to employ this strategy on this particular question, you would find that the only answer choice that has anything to do with Passage A is (C). The only one that might give you pause as far as not knowing if Passage A talked about it is (D). However, upon closer reading, (D) is wrong because it's saying that both passages were airing a scientific controversy over the function of the honeybee's dance. However, there is no controversy over the function of the dance—both passages describe how the function of the dance is for honeybees to communicate where food is.
Thus, we know that (C) is the only thing that Passage A talks about in the answer choices. Now we can read Passage B, and all we have to do is confirm that Passage B talks about scientific studies concerned with animal communication. Sure enough, Passage B does aim to describe certain scientific studies concerned with animal communication, as various studies are discussed throughout the passage. Therefore, (C) is the correct answer.
Does this strategy make sense? Let us know if you have any other questions!
