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: Medicine
[{'content': 'The minimum platelet count required to maintain vascular integrity in the microcirculation is: \nSelect and explain. \nA. 1000-5000, B. 5000-10000, C. 10,000-20,000, D. 20,000-30,000', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A platelet count of 5000-10,000 is required to maintain vascular integrity in microcirculation. Ref: Harrisons Principles of Internal Medicine, 18th edition, Page : 966', 'role': 'assistant'}]