9. Which enzyme is not involved the carbon fixation of the Calvin cycle in C4 plants?
(A) Fructose-1,6-bisphosphatase, (B) NADP-dependent malic enzyme, (C)Pyruvate phosphate dikinase (PPDK), (D) NADP-malate dehydrogenase, (E)
Phosphoenolpyruvate carboxylase (PEPC).