If plans did not have access to water, they would
a. not be able to make atp or nadph
b. be able to make nadph but not atp
c. be able to make atp but not nadph
d. be able to make atp and nadph

c. be able to to make ATP but not NADPH

Explanation:

The light absorbed by the chlorophyll molecules induce the splitting of water to Oxygen and H+ (protons) in a process called photolysis. The accumulated protons in the lumen results in a gradient where these protons are transferred to the stroma by the ATP synthase. The energy released from the protons moving down the concentration gradient is used to ADP and Pi forming ATP.