What is the impact of acetyl CoA dehydrogenase activity on the electron transport chain?

• A. It directly produces ATP in the electron transport chain.
• B. It contributes electrons via NADH to the electron transport chain, aiding in ATP production.
• C. It inhibits the electron transport chain, reducing ATP production.
• D. It contributes electrons via FADH2 to the electron transport chain, aiding in ATP production.

Answer: (D)