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, the ATP production and respiratory chain are linked by : \nSelect and explain. \nA. Chemical methods, B. Physical methods, C. Chemiosmotic methods, D. Conformational changes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Chemiosmotic methods', 'role': 'assistant'}]