If a plant is able to carry out the light-dependant reactions, but then becomes impaired in its ability to carry…

If a plant is able to carry out the light-dependant reactions, but then becomes impaired in its ability to carry out the Calvin cycle reactions, what will happen most immediately?

A. NADPH levels will go up.

B. NADPH levels will go down.

C. Photosystem I and II will be uncoupled.

D. ATP production will cease.