TOEFL Listening: TPO-TOEFL阅读TPO - 0I54XFS3O0OCK989N$

Why does the author mention the survival of "snakes, lizards, turtles, and crocodiles" in paragraph 3? A. To argue that dinosaurs may have become extinct because they were not cold-blooded animals B. To question the adequacy of the hypothesis that climatic change related to sea levels caused the extinction of the dinosaurs C. To present examples of animals that could maintain a livable body temperature more easily than dinosaurs D. To support a hypothesis that these animals were not as sensitive to climate changes in the Cretaceous period as they are today