Question

what is the third and final stage of aerobic respiration?
oxidative phosphorylation
reductive phosphorylation
lactic acid fermentation

Explanation:

Aerobic respiration has three stages: glycolysis, the citric acid cycle, and the final stage is oxidative phosphorylation (which includes the electron transport chain and chemiosmosis to produce ATP). Reductive phosphorylation is not a stage of aerobic respiration, and lactic acid fermentation is an anaerobic process, not part of aerobic respiration.

Answer:

oxidative phosphorylation