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': 'Incidence of Renal ectopia is - \nSelect and explain. \nA. 1:100000, B. 1:75000, C. 1:10,000, D. 0.736111111', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]