NADPH₂ is produced in photosynthesis during:

Explanation

The correct answer is noncyclic photophosphorylation. This process occurs in the light-dependent reactions of photosynthesis, wherein electrons are transported from Photosystem II to Photosystem I, ultimately leading to the production of both ATP and NADPH. NADPH is specifically generated through the reduction of NADP+ at the end of this electron transport chain. The other options, such as cyclic and pseudo-cyclic photophosphorylation, primarily focus on ATP production and do not produce NADPH. The 'dark reaction' (Calvin cycle) uses NADPH to fix carbon but does not produce it.