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: Unknown
[{'content': 'Collecting duct develops from which of the following? \nSelect and explain. \nA. Mesonephros, B. Metanephros, C. Ureteric bud, D. Paramesonephric duct', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]