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': 'The surgery of choice for diffuse endometriosis interna is : \nSelect and explain. \nA. Total hysterectomy, B. Localised excision of the affected area, C. Hysterectomy + Oophorectomy, D. Oophorectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Total hysterectomy', 'role': 'assistant'}]