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: Pathology
[{'content': 'Which of the following facts about prostate is not true? \nSelect and explain. \nA. Benign prostatic hyperplasia is common in peripheral zone, B. Normal adult prostate weighs around 20gm, C. Carcinomas are more common in peripheral zone, D. PSA is sensitive marker in prostate pathology but lacks specificity', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Prostate has 3 zones\na) Central zone\nb) Transition zone - BPH\nc) Peripheral zone - Carcinomas.', 'role': 'assistant'}]