PLS HELP IM DESPERATE

Which sentence best describes the production of ATP by the light reactions?

A.
Photons of light are absorbed by ATP synthase and cause phosphate groups to be added to ADP molecules.

B.
Hydrogen ions (H+) build up inside the thylakoids and flow through ATP synthase, causing phosphate groups to be added to ADP.

C.
ADP molecules flow through ATP synthase, causing them to combine and form ATP molecules.

D.
Energized electrons from chlorophyll provide the energy needed to combine phosphate groups and ADP molecules.