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
Cystinuria is associated with excretion of which amino acid in urine 
Select and explain. 
A. Cystine, lysine, Tyrosine and alanine, B. Cystine, lysine, ornithine and alanine, C. Cystine, ornithine, lysine and arginine, D. Cystine, ornithine, leucine and arginine
C: Cystine, ornithine, lysine and arginine
Answer: C: Cystine, ornithine, lysine and arginine 
Explanation: None