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': 'Symptoms of BPH is graded by \nSelect and explain. \nA. Gleason score, B. IPSS score, C. SBPH core, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: IPSS score divides symptoms into:\xa0\n\nMild- 0-7\nModerate - 8-19\nSevere - 20 -35.', 'role': 'assistant'}]