This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': "McNeal's peripheral Zone in prostate gland is the seat of \nSelect and explain. \nA. Benign Hyperophy, B. Cancer, C. Prostatitis, D. Calculi", 'role': 'user'}, {'content': "Answer: B \nExplanation: Carcinoma prostate arises from the peripheral zone in prostatic gland proper, commonly in posterior lobe. BPH arises from the submucosal glands of periurethral transitional zone. Reference : page 1044 and1048 SRB's manual of surgery 5th edition", 'role': 'assistant'}]