This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Biochemistry
Enzyme activated by decrease in insulin glucagon ratio 
Select and explain. 
A. Glucokinase, B. Hexokinase, C. PFK, D. glucose 6 phosphatase
D: glucose 6 phosphatase
Answer: D: glucose 6 phosphatase 
Explanation: ref : lipincott