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: Biochemistry
[{'content': 'In maple syrup disease, the amino acids excreted in urine are: \nSelect and explain. \nA. Valine, Leucine, Isoleucine, B. Phenylalanine, Leucine, Isoleucine, C. Tyrosine Leucine, Isoleucine, D. Isoleucine, Valine,Phenylalanine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Valine, Leucine, Isoleucine', 'role': 'assistant'}]