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': 'Urinary incontinence results from all except ? \nSelect and explain. \nA. Neurogenic bladder, B. Vesico vaginal fistula, C. Ectopic ureter, D. Rectovesical fistula', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Rectovesical fistula", 'role': 'assistant'}]