听力原文：The most spectacular thing about the sea cucumber is the way it defends itself. I

ts major enemies are fish and crabs, when attacked, it squirts all its internal organs into the water. It also casts off attached structures such as tentacles. The sea cucumber will eviscerate and regenerate itself if it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.

Which of the following would NOT cause a sea cucumber to release its internal organs into the water？

A．A touch.

B．Food

C．Unusually warm water.

D．Pollution.