Answer the following question given this paragraph: 

Because energy is a product, energy is given off by the reaction. Therefore, this reaction is exothermic. Because energy is a reactant, energy is absorbed by the reaction. Therefore, this reaction is endothermic.


Q: In an endothermic reaction, what is absorbed by the reaction?

 Choices:

- food

- fuel

- atoms

- energy

A:
energy
