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 FADH₂. 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.
