TOEFL Listening: ETS-TOEFL听力机经 - Z3E1C30KFTXY4F3ZP$

According to the professor, how did climate change affect the two butterfly species that she discusses? A. It dried up the water supply in their habitat. B. It made them vulnerable to predators. C. It caused a decrease in their food supply. D. It made it hard for them to reproduce.