Correct option:(C)ATP

Solution:

• Photophosphorylation is the process in which phosphate group is transferred to ADP.
• Synthesis of energy-rich ATP molecules in the presence of light.
• Cyclic photophosphorylation occurs in photosystem I and the electrons expelled by the photosystem come back to it by a series of steps.
• Energy is produced in the form of ATP by electron flow.