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
Most common site of development of carcinoma of prostate is 
Select and explain. 
A. Central zone, B. Transitional zone, C. Peripheral zone, D. B + C
C: Peripheral zone
Answer: C: Peripheral zone 
Explanation: For BPH - transitional zone is most commonly involved
For carcinomma - peripheral zone is most commonly involved.