Cells rely on compounds that readily store and release energy. Which statement describes how energy storage and release occurs in cells?

A The Krebs cycle serves to store energy and make it readily available for cell function

B

ATP attracts an additional phosphate group and stores energy in the form of ADP.

C

ATP stores energy and releases it as it reverts back to ADP.

D. The electron transport chain stores energy in the bonds of NAD* and releases it as NAD reverts back to NADH.