What Does the Chemiosmotic Process in Chloroplasts Involve

What does the chemiosmotic process in chloroplasts involve?

A) establishment of a proton gradient across the thylakoid membrane
B) diffusion of electrons through the thylakoid membrane
C) reduction of water to produce ATP energy
D) movement of water by osmosis into the thylakoid space from the stroma
E) formation of glucose, using carbon dioxide, NADPH, and ATP