Which of the Following Statements About Coral Bleaching Is TRUE

Which of the following statements about coral bleaching is TRUE?

A) Bleached corals die more rapidly than unbleached corals.
B) Coral bleaching results from the loss of algal symbionts from the coral tissue.
C) Corals appear white after bleaching because their white calcium carbonate skeletons are visible through their translucent tissue.
D) Increased seawater temperature is one cause of coral bleaching.
E) All of these choices are correct.