TOEFL Reading: ETS-TOEFL阅读机经 - D46KXBRY4_38EEU4L$

What can be inferred from paragraph 6 about the diet of Acanthaster larvae A. Phytoplankton is an important food source for them. B. Storm water runoff washes away important nutrients they need. C. When water temperature rises they have difficulty finding enough food. D. Storms add needed salt to their diet.