Energy from light reaction is transferred to dark reaction in the form of

Answer: Option B

Energy from the light reaction is transferred to the dark reaction in the form of ATP.
During the light-dependent stage, chlorophyll absorbs light energy, which excites some electrons in the pigment molecules to higher energy levels; these leave the chlorophyll and pass along a series of molecules, generating the formation of NADPH (an enzyme) and high-energy ATP molecules.