Correct Answer - B
During light reaction of photosynthesis NADPH, ATP and oxygen are formed. Oxygen is liberated by the photolysis of water.
`4H_(2)OhArr4H^(+)+4OH^(-)`
`4OH^(-)underset(Mn^(2+),Ca^(2+),Cl^(-))overset("Oxygen-Evolving complex")to2H_(2)O+O_(2)uarr+4e^(-)`
The electrons released during photolysis of water are picked up by `P_(680)` photocentre of PS-II. On receiving light energy photocentre expels an electron which passes over a series of carriers. As a result assimilatory power. i.e. ATP and NADPH is produced. NADH is formed during respiration.
