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': "A 42 year old female P3 + 0 + 0 + 3 is found to have carcinoma in situ. Best treatment would be: \nSelect and explain. \nA. Hysterectomy, B. Weheim's hysterectomy, C. Conisation, D. Wait and Watch", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. Hysterectomy', 'role': 'assistant'}]