The Major Steps in Oxidative Phosphorylation Include All of the Following

The major steps in oxidative phosphorylation include all of the following, except

A) removal of hydrogen atoms from a substrate molecule by coenzymes.
B) the acceptance of electrons by oxygen atoms.
C) increasing the energy level of electrons passing through the electron transport chain.
D) ionization of hydrogen atoms.
E) the breaking of carbon- carbon covalent bonds.