How does fermentation regenerate NAD+ to allow glycolysis to continue in the absence of oxygen?

• A. Fermentation transfers electrons from NADH to pyruvate, regenerating NAD+ and allowing glycolysis to continue.
• B. Fermentation uses oxygen to oxidize NADH, regenerating NAD+ and allowing glycolysis to continue.
• C. Fermentation converts pyruvate into glucose, regenerating NAD+ and allowing glycolysis to continue.
• D. Fermentation breaks down ATP to regenerate NAD+, allowing glycolysis to continue.

Answer: (A)