Refer to the Figure Below, and Then Answer the Question

Refer to the figure below, and then answer the question that follows.

-As electrons move through the electron transport chain,which of the following occurs?

A) Electrons are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion.
B) Hydrogen ions move down their concentration gradient from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion.
C) Energy from ATP is used to pump hydrogen ions across the inner membrane of the mitochondrion.
D) ATP is synthesized from ADP and P as hydrogen ions flow down the electron transport chain.
E) Hydrogen ions are pumped from the inner compartment of the mitochondrion to the outer compartment of the mitochondrion.