Respuesta :
Answer:
A. anything that brings about changes.
Explanation:
Energy is something which is able to bring changes. It is a quantitative property which is transferred to an object to bring changes in the form to work, heat etc. It works on the law of conservation and SI unit of energy is joule while other units are calorie, kilo calorie, BTU, erg. Some common forms of energy are:- kinetic energy, potential energy, chemical energy, elastic energy.