This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drug and Alcohol-Related Conditions, Subject name: Psychiatry
[{'content': "Wernicke's encephalopathy is due to deficiency of - \nSelect and explain. \nA. Folic acid, B. Thiamine, C. Ascorbic acid, D. Pyridoxine", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Thiamine Wernike's encephalopathyo This is caused by thiamine deficiency.o There are acute degenerative changes in thalamus, hypothalamus and mammillary bodies,o Signs are: confusion, ocular paresis and nystagmus, staggering gait and peripheral neuropathy.", 'role': 'assistant'}]