Identify a Reactant in the Light Reaction of Photosynthesis

Question

Identify a reactant in the light reaction of photosynthesis.
A)carbon dioxide
B)ATP
C)H2O
D)NADPH
E)oxygen

Accepted Answer

H₂O represents water (H2O) when decoded from the subscript and superscript formatting, and water is a reactant in the light-dependent reactions of photosynthesis, where it is split into oxygen, protons, and electrons.