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': 'All of the following are irreversible ADP inhibitors except \nSelect and explain. \nA. Ticlodipine, B. Clopidogrel, C. Prasugrel, D. Cangrelor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cangrelor & Ticagrelor are reversible ADP inhibitors.', 'role': 'assistant'}]