The correct option is A Light energy is converted into chemical energy in the form of ATP.
In photosynthesis, light energy is converted into chemical energy and this chemical energy is used in photophosphorylation. Phosphorylation is a process in which ATP is generated. Photophosphorylation is the same process, which happens in the presence of light. It is of two types: cyclic and non-cyclic photophosphorylation.