Which two reactions occur during photophosphorylation.

Explanation

During photophosphorylation, which is part of the light-dependent reactions of photosynthesis, ATP is synthesized through a process known as chemiosmosis. Concurrently, NADP is reduced to NADPH by gaining electrons and protons. This process is crucial for converting light energy into chemical energy stored in ATP and NADPH, which are then used in the Calvin cycle. The incorrect options either mention the hydrolysis of ATP, which does not occur in photophosphorylation, or the oxidation of NADPH, which is incorrect as NADPH is the reduced form.