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': 'An alcoholic addicted presents in an emergency with irrelevant talking & disoriented to time, place and person. There is h/o not taking alcohol from last 3 days & no head injury. He also has a visual hallucination. The diagnosis - \nSelect and explain. \nA. Dementia praecox, B. Delirium tremens, C. Schizophrenia, D. Korsakoff psychosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Disorientation and visual hallucinations after 3 days of alcohol abstinence, in an alcoholic, suggest the diagnosis of delirium tremens.', 'role': 'assistant'}]