Krebs cycle uses pyruvate which is transported into mitochondria, and produces ATP molecules and NADH molecule.
Calvin Cycle use ATP molecule and NADPH molecule to produce sugar.
Hence the option B is incorrect.
NADH molecules produced from Krebs cycle are go through oxidation in the next stage to produce Oxygen.
Sugar produced in Calvin Cycle, is polymerized and stored as a polymer of glucose. These sugars are consumed by plants itself to produce energy by cellular respiration.
Hence, the option C is incorrect.
Krebs cycle use pyruvate to initiate process.
Calvin Cycle use light reaction which in produces ATP molecule by absorbing light.
Hence, the option D is incorrect.
Krebs cycle takes place in matrix of mitochondria, and for single consumed glucose molecule 2 ATP molecules, 6 molecules of NADH are produced.
Calvin Cycle use ATP molecules and NADPH molecules to produce sugar.
Therefore, the correct option is .