in an endothermic reaction

Question

1.energy is a product and the temperature of the surrounding environment increases
2.energy is a product and the temperature of the surrounding environment decreases
3.energy is a rectant and the temperature of the surrounding environment increases
4.energy is a reactant and the temperature of the surrounding environment decreases.

Answer 1

Reason this out. What does endo mean?
Here is an endothermic reaction.
A + B + heat ==> products.