Which statement regarding coral bleaching is true?
a. Coral bleaching involves the decay of a pigment within the dermal tissue of the coral.
b. Coral bleaching involves the breakdown of colored pigments in the coral and is due to exposure to radiation from the sun.
c. Coral bleaching involves the expulsion of mutualistic zooxanthellae from the coral due to an increase in water temperature.
d. Coral bleaching involves the breakdown of a mutalistic bacteria from the dermal tissue of corals due to sun exposure.