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: Psychiatry
[{'content': 'Anesthetic agent used in ECT is \nSelect and explain. \nA. Ketamine, B. Thiopentone, C. Propofol, D. Methohexitol', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Methohexitol is a barbitutate used as induction agent in ECT.', 'role': 'assistant'}]