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': 'Which of the following antiplatelet drugs is a prodrug ? \nSelect and explain. \nA. Clopidogrel, B. Tirofiban, C. Aspirin, D. Dipyridamole', 'role': 'user'}, {'content': 'Answer: A \nExplanation: - Among the given options only Clopidogrel is a prodrug. Antiplatelet drugs which are prodrugs include clopidogrel and ticlopidine.', 'role': 'assistant'}]