This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inborn Errors of Metabolism, Subject name: Pediatrics
[{'content': 'In Hartnup disorder what is seen? \nSelect and explain. \nA. Pellagra like rash, B. Burn feet rash, C. Alopecia, D. Vitiligo', 'role': 'user'}, {'content': "Answer: A \nExplanation: a. Pellagra like rash(Ref: Nelson's 20/e p 648-649)Clinical Features of Hartnup Disorder:Most children with hartnup defect remain asymptomaticIn symptomatic patients cutaneous photosensitivity and pellagra-like rash on sun exposureSome patients may have intermittent ataxia manifested as an unsteady, wide-based gait", 'role': 'assistant'}]