The most accurate statement among the options you provided is:
A. Energy is stored in chemical bonds and released when the bonds are broken.
This statement accurately reflects the concept that energy is stored in the chemical bonds of molecules and that breaking these bonds releases energy.
Option B is misleading because it suggests that energy is absorbed when bonds are broken, which is not generally the case; energy is typically released upon breaking bonds.
Option C is not universally true; the energy required to break or form a bond depends on the specific bonds involved.
Therefore, the correct answer is A.