This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
[{'content': 'All of the following features are associated with Delirium tremens EXCEPT \nSelect and explain. \nA. Agitated, B. Insomnia, C. No loss of sleep, D. Reversal of sleep wake pattern', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (C) No loss of sleep # Delirium tremens Symptoms are> Clouding of consciousness> Poor attention span> Visual hallucinations which are often vivid and frightening> Tactile hallucinations and auditory hallucinations> Marked autonomic disturbances> Tachycardia Fever Sweating Hypertension Pupillary dilatation> Psychomotor agitation and ataxia> Insomnia> Dehydration> The course is short with recovery occurring within 3-7 days> Reversal of sleep pattern', 'role': 'assistant'}]