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: Forensic Medicine
[{'content': "Wernicke-Korsakoff's syndrome is due to the deficiency of: FMGE 10; JIPMER 10; NIMHANS 14 \nSelect and explain. \nA. Pyridoxine, B. Thiamine, C. Vitamin B12, D. Riboflavin", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Thiamine', 'role': 'assistant'}]