How does atp release energy that's stored within the molecule?
o a. altering number of carbon groups tied to the phosphate backbone
o b. altering number of phosphate groups tied to the carbon backbone
o c. altering the number of oxygen groups revolving around the central molecule
o d. altering the total amount of kinetic energy within atp

B ) Altering number of phosphate groups tied to the carbon backbone

When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).

Explanation:

Hopefully it helps :P