which of the following statements is true? in photosynthesis, oxygen, carbon dioxide, atp, and nadph are reactants. g3p and water are products. in photosynthesis, chlorophyll, water, and carbon dioxide are reactants. g3p and oxygen are products. in photosynthesis, water, carbon dioxide, atp, and nadph are reactants. rubp and oxygen are products. in photosynthesis, water and carbon dioxide are reactants. g3p and oxygen are products.