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: Surgery
[{'content': 'All are features of Hypernephroma except- \nSelect and explain. \nA. Persistent pyrexia, B. Hematuria, C. Polycythemia, D. Lower pole involvement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]