Why Are C4 Plants Able to Photosynthesize with No Apparent

Multiple Choice

Why are C4 plants able to photosynthesize with no apparent photorespiration?

A) They do not participate in the Calvin cycle.
B) They keep their stomata open most of the time in hot, dry climates, which allows for water loss to prevent photorespiration.
C) They keep their stomata closed most of the time in hot, dry climates, which conserves water and oxygen to inhibit photorespiration.
D) They do not use rubisco to fix CO₂.
E) They exclude oxygen from their tissues.