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
Markers of acute kidney injury inculde all of the following except: 
Select and explain. 
A. Micro RNA-122, B. Cystatin C, C. N-gal, D. Kim-1
A: Micro RNA-122
Answer: A: Micro RNA-122 
Explanation: None