Glycolysis and pyruvate oxidation are commonly referred to as the "aerobic oxidation pathway". Is oxygen present in this pathway? Explain.

• A. No. Glycolysis and pyruvate oxidation do not require oxygen; rather, oxygen is produced during these two processes. 
• B. Yes. Glycolysis and pyruvate oxidation both require oxygen in their processes, and the resulting products are essential for ATP production and NAD⁺ regeneration in the electron transport chain.
• C. No. While glycolysis and pyruvate oxidation do not directly use oxygen, they are part of a larger metabolic pathway that uses oxygen as the final electron acceptor to produce a large amount of ATP and regenerate NAD⁺.
• D. Yes. Glycolysis and pyruvate oxidation require oxygen to convert ATP to ADP, which produces a lot of energy in the process.