Answer:
The correct answer will be option-C.
Explanation:
Cellular respiration is the slow oxidation of the glucose molecule which provides energy in the form of ATP molecules.
The process proceeds in four stages: glycolysis, pyruvate decarboxylation, Krebs cycle and electron transport chain.
The glycolysis and Krebs cycle produces high energy equivalents called NADH and FADHâ‚‚. These reducing equivalents provide electrons and protons in the electron transport chain and thus help synthesize more ATP.
Thus, Option-C is the correct answer.