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: Medicine
[{'content': "One of the characteristic bedside features of Korsakoff's psychosis is- \nSelect and explain. \nA. Astereogenesis, B. Apraxia, C. Confabulation, D. Hallucination", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]