Question

lesson 24: systems and energy
what is energy?
being able to absorb or release heat
the capacity to change
the capacity to have power
the capacity to do work

Explanation:

Energy is defined in physics as the capacity to do work. Absorbing or releasing heat is related to thermal energy but not the general definition. "The capacity to change" is too vague. "The capacity to have power" is incorrect as power is the rate of energy transfer.

Answer:

the capacity to do work