Which statement is correct for the enthalpy level diagram shown?

A.     The reaction is exothermic and the products are more stable than the reactants.

B.     The reaction is exothermic and the sign of the enthalpy change is positive.

C.     The reaction is endothermic and the sign of the enthalpy change is negative.

D.     The reaction is endothermic and the products are more stable than the reactants.

A