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
[{'content': 'Jack stone calculi is seen in which anatomic pa ? \nSelect and explain. \nA. Prostate, B. Kidney, C. Ureter, D. Bladder', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Bladder", 'role': 'assistant'}]