What Molecule is a Product of Each of Glycolysis, Pyruvate

Question

What molecule is a product of each of glycolysis, pyruvate oxidation, and the citric acid cycle?
A) ATP
B) FADH2
C) NADH
D) H2O

Accepted Answer

NADH is produced in all three metabolic pathways: glycolysis, pyruvate oxidation, and the citric acid cycle, serving as a key electron carrier.