CORRECT OPTION IS:(C)
REASON:
Light reaction occurs inside thylakoids it is dependent upon light it involves photolysis of water and production of assimilatory power in (NADPH and ATP) electrons released during photo essays of water are picked up by P 680 of photocentre of photosystem 2 .
From here electrons passes over series of career which includes PQ cytochrome b-f Complex and PC .
While passing over cytochrome Complex the electrolysis efficient energy for creation of proton gradient and ATP from ADP and inorganic phosphate .
From PC electron is picked by the Trap centre P700 of photosystem 1 which pushes out electron after absorbing light energy .
Electron passes over careers FeS ferredoxin and NADP-reductase which gives electron to NADP+ for combining with H+ two form NADPH.