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': "35 year old male comes with h/o 10 year o;' alcoholism and past history of ataxia with B/L lateral rectus palsy. He was admitted & treated what changes expected to see: \nSelect and explain. \nA. Progression to korasakoff's psychosis, B. Residual ataxia in 50% of patients, C. None, D. Immediate relief from symptoms", 'role': 'user'}, {'content': 'Answer: B \nExplanation: B. i.e. Residual ataxia in 50% of cases;', 'role': 'assistant'}]