In alcoholic fermentation

Answer: Option A

In alcoholic fermentation, Triose phosphate is electron donor while acetaldehyde is electron acceptor.
Alcoholic fermentation is a complex biochemical process during which yeasts convert sugars to ethanol, carbon dioxide, and other metabolic by-products that contribute to the chemical composition and sensorial properties of the fermented foodstuffs.
The energy released by these exothermic reactions is used to phosphorylate two ADP molecules, yielding two ATP molecules, and reduce two molecules of NAD⁺ to NADH. The 2 pyruvate molecules are broken down, yielding two molecules of acetaldehyde and giving off two molecules of carbon dioxide.