TOEFL Listening: TPO-TOEFL阅读TPO - JEMBBLR6B53T243RN$

What is the role of paragraph 5 in relation to paragraph 4? A. It restates the hypothesis presented in paragraph 4 and reinforces it with further evidence. B. It presents evidence that the hypothesis discussed in paragraph 4 confuses cause and effect. C. It presents a critical assessment of the hypothesis presented in paragraph 4. D. It explains how the hypothesis discussed in paragraph 4 was initially formulated.