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': 'Niacin dificiens causes all except - \nSelect and explain. \nA. Dermatitis, B. Dactvlis, C. Diarrhoea, D. Dementia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Dactylis Niacino Vitamin B3o Niacin incorporated into NAD & NADPo Both are co-enzyme for oxydation-reduction reactiono Deficiency cause pellagra characterised by3D- 1) Dermatitis2) Diarrhoea3) Dementia", 'role': 'assistant'}]