Questions 31-34 ask about Passage A.

33. The main point of the second paragraph of Passage A (the highlighted phrase) is that:

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

lines 21-29 mean that primate and humans belong to the same lineage, so it is not surprising that there are such cells; but whales and elephants are different from the ancestors of humans, they may have developed spindle cells independently, so Option C;