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': 'Tube testing is done under : \nSelect and explain. \nA. Ketamine, B. General anesthesia, C. No anesthesia, D. Local anesthesia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: No anesthesia', 'role': 'assistant'}]