What happens to the energy released by an exothermic reactions

In an exothermic reaction, the products are at a lower energy than the reactants. The difference between the energy of the reactants and the energy of the products is called the enthalpy change (∆H) of the reaction. For an exothermic reaction, the enthalpy change is always negative.

im not exactly sure but i think its b!

i'm pretty sure it is letter c.) car