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': 'Amino acids secreted in cystinuria are all except \nSelect and explain. \nA. Ornithine, B. Histidine, C. Arginine, D. Lysine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Amino acids excreted in cystinuria are (COLA): cysteine, ornithine, lysine, and arginine', 'role': 'assistant'}]