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 is not seen in: \nSelect and explain. \nA. H.S. purpura, B. DIC, C. Leukemia, D. Metastasis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (H. S. Purpura)', 'role': 'assistant'}]