Compare ATP production in the citric acid cycle to the electron transport chain, or aerobic respiration.

Both processes use oxidative phosphorylation.

Both processes use substrate-level phosphorylation.

The citric acid cycle uses substrate-level phosphorylation, and the electron transport chain uses oxidative phosphorylation.

The citric acid cycle uses oxidative phosphorylation, and the electron transport chain uses substrate-level phosphorylation.

The correct statement is:

The citric acid cycle uses substrate-level phosphorylation, and the electron transport chain uses oxidative phosphorylation.