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
Symptoms of BPH is graded by 
Select and explain. 
A. Gleason score, B. IPSS score, C. SBPH core, D. None of the above
B: IPSS score
Answer: B: IPSS score 
Explanation: IPSS score divides symptoms into: 

Mild- 0-7
Moderate - 8-19
Severe - 20 -35.