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': 'Thrombocytopenia with widespread thrombosis? \nSelect and explain. \nA. Antiphospholipid antibody syndrome, B. CML, C. Hairy cell leukemia, D. Hemolytic uremic syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]