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': "Mutation in Hartnup's disease is \nSelect and explain. \nA. SLC6A18, B. SLC6A17, C. SLC6A19, D. SLC6A20", 'role': 'user'}, {'content': "Answer: C \nExplanation: SLC6A19 gene encodes neutral amino acid transporter. Its mutation is seen in Hartnup's disease.", 'role': 'assistant'}]