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': 'The most common adverse effect with ticlopidine is : \nSelect and explain. \nA. Neutropenia, B. Diarrhea, C. Hemorrhage, D. Thrombocytopenic purpura', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]