This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Prostate Cancer, Subject name: Surgery
[{'content': 'Most common site of prostate carcinoma is - \nSelect and explain. \nA. Anterior zone, B. Peripheral zone, C. Central zone, D. Transitional zone', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Peripheral zone o Surgical Anatomy of Prostate# Prostate is divided into following 3 zones:o Peripheral zone which lies in the outer part of prostate but mainly posteriorly.o Central zone: tvhich lies posterior to the urethral lumen and above the ejaculatory ducts as they pass through the prostate.o Periurethral transitional zone (TZ)o Carcinoma arise most commonly from - Peripheral zoneo Benign prostatic hyperplasia arise from - Transitional zoneo As BHP arises from transitional zone and 'prostatectomy' done for BHP removes TZ leaving behind the PZ. The pt. is still at risk for prostatic carcinoma.", 'role': 'assistant'}]