This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamin B, Subject name: Pediatrics
[{'content': 'In pellagra, all are seen except - \nSelect and explain. \nA. Diarrhoea, B. Dermatitis, C. Delusion, D. Dementia', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Delusion PellagraNiacin (Vit B) defTriad of -DermatitisDiarrheaDementia", 'role': 'assistant'}]