The Reason Their Exoskeletons Cannot Protect the Corals from Sea

Multiple Choice

The reason their exoskeletons cannot protect the corals from sea stars is that the sea star

A) is immune to the toxin of the nematocysts.
B) thorns are sharp and toxic.
C) tubefeet act as tiny syringes that suck the corals out of their exoskeletons.
D) stomach can be everted, and can release digestive juices directly onto the corals.