TOEFL Reading: ETS-TOEFL阅读机经 - 466JZVVE7338N4A5L$

According to paragraph 2, prehistorians disagree about which of the following A. Whether humans hunted animals themselves or ate meat from animals killed by other carnivores B. The number and kinds of animals humans ate C. Whether lions and other carnivores were hunted by humans D. Whether or not humans butchered animals to eat