A young man was on high protein diet. After 3 days he developed weakness. Blood investigation revealed hypoglycemia. Hypoglycemia is due to inhibition of which of the following enzymes
(A) Glucose 6 phosphatase (B) Glycogen phosphorylase (C) Phosphoglucomutase (D) PEP carboxylase
(D) Answer- D. PEP carboxylase