Which sentence best describes how most ATP is produced during cellular
respiration?

A. ATP synthase uses kinetic energy to join ADP molecules with
phosphate groups.

B. The electron transport chain causes hydrogen ions to move into
the intermembrane space.

C. Twice as much ATP is made during glycolysis than is used to split
glucose.

D. Glycolysis uses ATP to split one glucose molecule into two
pyruvate molecules.