Inside an active mitochondrion, most electrons follow which pathway?
A. Glycolysis, NADH, oxidative phosphorylation, ATP, oxygen
B. Citric acid cycle, FADH2, ETC, ATP
C. ETC, CAC, ATP, oxygen
D. Pyruvate, CAC, ATP, NADH, oxygen
E. CAC, NADH, ETC, oxygen
Answer: E