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: Pediatrics
All of the following are biomarkers of kidney function except 
Select and explain. 
A. NGAL, B. Cystatin - C, C. KIM - 2, D. IL - 18
C: KIM - 2
Answer: C: KIM - 2 
Explanation: Biomarkers of kidney function :
Cystatin - C.
NGAL ⇒ Neutrophil Gelatinase associated lipocalcin.
KIM - 1 ⇒ Kidney injury molecule - 1.
IL - 18 ⇒ Interleukin - 18.