Answer:
The correct answer will be option-C.
Explanation:
Carbon fixation is a step of the light-independent reaction called the Calvin cycle of the photosynthesis. The Calvin cycle proceeds in three steps: carboxylation, reduction and regeneration of RuBP.
During carboxylation, the carbon from carbon dioxide binds the RuBP molecule, a five-carbon molecule by Rubisco enzyme and form two molecules of 3-phosphoglycerate (3PGA).
Thus, Option-C is the correct answer.
