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': 'Colopotomy is done to treat - \nSelect and explain. \nA. Ischeorectal abscess, B. Pelvic abscess, C. Appendicular abscess, D. Perianal abscess', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Pelvic abscess", 'role': 'assistant'}]