The Decomposition of NO and NO₂ to the Elements Proceeds

The decomposition of NO and NO₂ to the elements proceeds via the following two reactions.
2NO(g) → N₂(g) + O₂(g) DH°rxn = -180 kJ
2NO₂(g) → N₂(g) + 2O₂(g) DH°rxn = -66.4 kJ
Calculate the enthalpy change for the reaction
2NO(g) + O₂(g) → 2NO₂(g)

A) 244 kJ
B) -244 kJ
C) -114 kJ
D) -293 kJ
E) none of the above