The Calvin cycle begins when carbon dioxide reacts with?

Explanation

The Calvin cycle reactions fix CO2 from the environment into carbohydrate molecules. Enzyme, Rubisco catalyzes this fixation reaction by reacting CO2 with Rubisco.OPTION A: NADP is the reducing agent produced by the light reaction during photosynthesis and is consumed in the Calvin cycle of photosynthesis.OPTION B: Calvin cycle is fueled by ATP; hence, ADP has no role in the Calvin cycle.OPTION C: FADH has no role in the Calvin cycle.OPTION D: Enzyme, Rubisco, catalyzes this fixation reaction by reacting CO2 with Rubisco.