Astudent hypothesized that pillar coral digest zooxanthellae for energy. which prediction is based on the student's hypothesis?

a. if pillar coral digest zooxanthellae, then pillar coral must be an important part of many coral reefs.
b. if pillar coral digest zooxanthellae, then zooxanthellae must be photosynthetic.
c. if pillar coral digest zooxanthellae, then pillar coral must need sunlight to survive.
d. if pillar coral digest zooxanthellae, then the zooxanthellae inside the pillar coral must be dead.