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: Gynaecology & Obstetrics
[{'content': 'Vesicovaginal fistula repair surgery, the drainage should be done for : \nSelect and explain. \nA. 6 days, B. 10 days, C. 12 days, D. 14 days', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 14 days', 'role': 'assistant'}]