The correct answer is b) pyruvate, ATP, NADH.
Glycolysis is the first step in the process of cellular respiration, where glucose is broken down to extract energy. During this process, one molecule of glucose (a six-carbon sugar) is converted into two molecules of pyruvate (a three-carbon compound). In addition to producing pyruvate, glycolysis generates a net gain of 2 ATP molecules, which are used by the cell for energy, and 2 molecules of NADH, which carry electrons to the electron transport chain for further energy production. Therefore, the primary products of glycolysis are pyruvate, ATP, and NADH.