Suppose the interior of the thylakoids of isolated chloroplasts were made acidic and then transferred in the dark to a pH 8 solution. What would be likely to happen?

A. The isolated chloroplasts will make ATP
B. The Calvin cycle will be activated
C. Cyclic photophosphorylation will occur
D. Only A and B will occur
E. A, B and C will occur I know the answer is A but why not B or C as well