TOEFL Listening: TPO-TOEFL阅读TPO - 9R1T85T3Q2BJC203N$

How does paragraph 3 relate to paragraph 2? A. Paragraph 3 provides an alternative explanation to the one provided in paragraph 2. B. Paragraph 3 provides an explanation that satisfies the conditions set forth in paragraph 2. C. Paragraph 3 provides the facts to support the theory presented in paragraph 2. D. Paragraph 3 presents a theory that calls into question the position described in paragraph 2.