This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'In oxidative phosphorylation, oxidetion of one NADH to NAD+produces how may ATPs: \nSelect and explain. \nA. 5, B. 6, C. 4, D. 3', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 3', 'role': 'assistant'}]