Coral Bleaching Is _________

Coral bleaching is _________.

A) when the sun bleaches the pigment of the coral and turns it white
B) when a chemical spill causes the coral to die and the skeleton,which is white,to show through
C) when coral expel the zooxanthellae from their cells in response to stress
D) when coral turns white due to lowering water temperatures
E) when another organism colonizes the coral and turns it white