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': "Karsakoff's Psychosis is diagnosed by \nSelect and explain. \nA. Peripheral neuropathy, B. Visual hallucination, C. Impairment of long term memory, D. Seizures", 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Impairment of long term memory', 'role': 'assistant'}]