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: Pharmacology
[{'content': 'Clopidogrel is an antiplatelet agent that acts by : \nSelect and explain. \nA. Reducing myocardial oxygen requirements during exertion and stress, B. Reducing myocardial oxygen requirements and by inducing coronary artery vasodilatation, C. Inhibiting ADP–induced platelet aggregation, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]