Question 74 and 75 ask about the preceding passage as a whole.
75. Suppose the writer's goal had been to write a brief essay that provides background information about noctilucent clouds and theories as to how these clouds form. Would this essay accomplish that goal?
Your Answer is
Correct Answer is B
Explanation
The thrust of the hypothesis, "background information on this cloud and theories about how it forms", matches the thrust of the article. In the reason of option A, reach a consensus "reach a consensus" error. B is correct.