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': 'Polycystic kidneys can be associated witha) Cysts in liver lungsb) Coarctation of aortac) Berry aneurysmsd) All \nSelect and explain. \nA. a, B. ac, C. ad, D. b', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]