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': 'With respect to ticlopidine, clopidogrel : \nSelect and explain. \nA. Is more likely to cause formation of antiplatelet antibodies, B. Is less likely to cause neutropenia, C. Is more likely to cause severe bleeding, D. Has a greater antiplatelet effect', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]