Which component is primarily generated during glycolysis?

The primary products of glycolysis are NADH and pyruvate. Glycolysis is the metabolic pathway that converts glucose into pyruvate, releasing energy in the form of ATP and reducing equivalents in the form of NADH.

During this process, a glucose molecule undergoes several enzymatic reactions, ultimately breaking down into two molecules of pyruvate. In addition to this, glycolysis involves the reduction of NAD+ to NADH, which is crucial because NADH is an important electron carrier that participates in further energy-producing processes, such as the electron transport chain.

While glycolysis does generate a small amount of ATP through substrate-level phosphorylation, the key outputs that identify the pathway and its role in cellular metabolism are indeed NADH and pyruvate. The other provided options either include components that are not products of glycolysis or are incorrect in their association with the pathway.