How Do CAM Plants Minimize Photorespiration

Multiple Choice

How do CAM plants minimize photorespiration?

A) The light reactions and the carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco.
B) The light reactions and the carbon reactions occur in different cells, so oxygen does not come into contact with rubisco.
C) Stomata are open only at night and oxygen is stored in a four-carbon compound. During the day the carbon dioxide is released for photosynthesis.
D) Stomata are open only at night and carbon dioxide is stored in a four-carbon compound. During the day the carbon dioxide is released for photosynthesis.
E) None of the answer choices are correct.