Which of the following statements best describes the role of redox reactions in microbial metabolism?

• A. Redox reactions are primarily involved in synthesizing ATP through substrate-level phosphorylation.
• B. Redox reactions are involved in transferring electrons, driving the production of ATP through oxidative phosphorylation.
• C. Redox reactions are only used in anaerobic respiration.
• D. Redox reactions are insignificant in fermentation because they do not involve electron carriers.

Answer: (B)