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 dysfunctional uterine bleeding is all except : \nSelect and explain. \nA. Oral contraceptive pills, B. Oestrogen, C. Progesterone, D. Ovariotomy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ovariotomy', 'role': 'assistant'}]