Which of the Following Statements Best Describes the Electron-Transport Chain

Multiple Choice

Which of the following statements best describes the electron-transport chain?

A) It is a series of protein complexes that transfer electrons from NADH and FADH₂ to oxygen.
B) It is another name for the citric acid cycle.
C) It is the same thing as catabolism.
D) It is cyclic, where the same oxygens are used over and over to transport electrons.
E) All of the above are true.