This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
Meister cycle uses: 
Select and explain. 
A. ALT, B. AST, C. GGT, D. Alkaline Phosphatase
C: GGT
Answer: C: GGT 
Explanation: Ans. C. GGTGamma Glutamyl Cycle (Meister cycle)