6. Which of the following best describes the effect of coral bleaching on corals? O A. As temperatures increase, corals gain symbiotic algae, which hinder their ability to conduct photosynthesis.
O B. As temperatures increase, corals lose symbiotic algae, which provide most of their habitat.
O C. As temperatures decrease, corals lose their symbiotic algae, which provide most of their energy.
O D. As temperatures increase, corals lose their symbiotic algae, which provide most of their energy