The right answer is D) electron transport.
In chloroplasts, light is used to oxidize water to oxygen, and to reduce NADP + to NADPH on the other hand, with concomitant proton injection into the lumen of thylakoids.
H2O ==> photosystem II (P680) ==> plastoquinone ==> cytochrome b6f complex ==> plastocyanin ==> photosystem I (P700) ==> ferredoxin ==> ferredoxin-NADP + reductase ==> NADP +
Cracks in rocks or mountians