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': 'Rathi, 26 years old female diagnosed to be suffering from depression. Now for the past 2 days had sucidal tendency, thought & ideas. The best treatment is \nSelect and explain. \nA. Amitryptiline, B. Selegidine, C. Haloperidol + CPZ, D. ECT', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. ECT', 'role': 'assistant'}]