【单选题】In order for cells to function properly, energy is required; for most cells, the energy is primarily derived from the high-energy phosphate bonds of ATP, which is produced through oxidative phosphorylation. Which one of the following is a key component of oxidative phosphorylation?
选项：

A:Using NADH and FAD(H2) to accept electrons as substrates areOxidized.
B:Creating a permeable inner mitochondrial membrane to allowMitochondrial ATP to enter the cytoplasm as it is made.
C:An ATP synthase to synthesize ATP
D:An ATP synthetase to synthesize ATP
E:A source of electrons, which is usually oxygen in most tissues