For synthesis of sugar by reducing CO2, NADPH2 provides:

Explanation

Option B and C are correct.NADPH provides energized electrons for the synthesis of sugar by reducing CO2. NADPH is a molecule that is produced in the light-dependent reactions of photosynthesis. It is a carrier of high-energy electrons, which are used by the Calvin cycle to reduce carbon dioxide into glucose.The Calvin cycle is a series of reactions that take place in the stroma of chloroplasts. It is the second phase of photosynthesis, and it is where sugar is produced. The Calvin cycle uses ATP and NADPH, the energy molecules produced in the light-dependent reactions, to fix carbon dioxide into glucose.The electrons from NADPH are used to reduce carbon dioxide, which means that they are donated to carbon dioxide. This reduces carbon dioxide to a form that can be used to build sugar. The electrons from NADPH are also used to power the reactions of the Calvin cycle. NADPH2 provides co-enzymes for sugar synthesis. Co-enzymes are molecules that help enzymes function. NADPH2 is a coenzyme that provides electrons for the reduction of carbon dioxide. The reduction of carbon dioxide is the process of adding electrons to carbon dioxide, which eventually forms glucose.In photosynthesis, NADPH2 is produced in the light-dependent reactions. It is then used by the Calvin cycle to reduce carbon dioxide into glucose. The Calvin cycle is a series of reactions that take place in the stroma of chloroplasts. It is the second stage of photosynthesis, and it is where glucose is actually produced.