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': 'Drug of choice in delirium tremens is - \nSelect and explain. \nA. Diazepalm, B. Phenytoin, C. Chlordiazepoxide, D. Morphine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Chlordiazepoxide is preferred over diazepam.', 'role': 'assistant'}]