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: Pediatrics
[{'content': 'Pellegra deficiency of ? \nSelect and explain. \nA. Niacin, B. Thiamine, C. Riboflavin, D. Folate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Niacin Beri-beri Deficiency of thiamine (Vit B1) Can be dry (neural involvement) Wet (cardiac involvent) Acute Pellagra Niacin (Vit B3) def. Dermatitis Diarrhea Dementia", 'role': 'assistant'}]