Questions 31-34 ask about Passage A.
33. The main point of the second paragraph of Passage A (the highlighted phrase) is that:
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;