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': 'Blood turbulence is increased in which of the following situations - \nSelect and explain. \nA. Multiple myeloma, B. Leukemia, C. Polycythemia, D. Anemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]