What Is $\Delta$ H_rxn° for the Reaction: 2 CO(g) + O₂(g) $\rightarrow$

Multiple Choice

What is $\Delta$ H_rxn° for the reaction: 2 CO(g) + O₂(g) $\rightarrow$ 2 CO₂(g) if:
C(s) + 1/2 O₂(g) $\rightarrow$ CO(g)   $\Delta$ H_rxn° = -111 kJ/mol_rxn
C(s) + O₂(g) $\rightarrow$ CO₂(g)   $\Delta$ H_rxn° = -393 kJ/mol_rxn

A) -564 kJ/mol_rxn
B) -282 kJ/mol_rxn
C) 171 kJ/mol_rxn
D) 282 kJ/mol_rxn
E) 564 kJ/mol_rxn