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: Biochemistry
[{'content': 'Specific disease caused by vitamin B1 deficiency: \nSelect and explain. \nA. Pellagra, B. Angular cheilitis, C. Megaloblastic anemia, D. Peripheral polyneuritis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]