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': 'Treatment of pelvic abscess which extends into pouch of Douglas: March 2013 \nSelect and explain. \nA. Hysterotomy, B. Posterior colpotomy, C. Transabdominal drainage, D. Colpography', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. Posterior colpotomy Vaginal drainage of a pelvic abscess (posterior colpotomy) is indicated when a pelvic abscess extends into the pouch of Douglas.', 'role': 'assistant'}]