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': 'The most oured treatment for a pelvic abscess in cul-de-sac is - \nSelect and explain. \nA. Laparotomy, B. Colpotomy, C. External I & D, D. Antibiotics', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Colpotomy", 'role': 'assistant'}]