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': 'Tumor associated with polycythemia is : \nSelect and explain. \nA. Sarcoma, B. Pituitary adenoma, C. Cerebellar haemangioblastoma, D. None of the above.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Cerebellar haemangioblastoma) Tumors associated with polycythemia vera are : Hypernephroma * Cerebellar Haemangioblastoma Hepatoma * Uterine fibromyoma Adrenal adenoma * Meningioma Pheochromocytoma', 'role': 'assistant'}]