This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
[{'content': "In Hanup's disease, the following amino acids are excreted into the urine \nSelect and explain. \nA. Basic amino acids, B. Acidic amino acids, C. Neutral amino acids, D. Hydrophilic aminoacids", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hanup disease reflects impaired intestinal and renal transpo of tryptophan and other neutral amino acids.The defect limits tryptophan availability for niacin biosynthesis and accounts for the pellagra-like signs and symptomsHarper 30th edition Pg: 308', 'role': 'assistant'}]