This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Dental
[{'content': 'Dermatological menifestation of which of the following disease? \nSelect and explain. \nA. Pellagra, B. Acrodermatitis enteropathica, C. Photo dermatitis, D. Vitamin B deficiency', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Above image showsdermatitis lesion in form of necklace called Casals necklacewhich is dermatological manifestation ofPellagra This is a manifestation of vitamin B3 /NIACIN deficiency. Characterized by dermatitis, dementia and diarrhea Above image showsdermatitis lesion in form of necklace called Casals necklace', 'role': 'assistant'}]