Sulfuryl Dichloride May Be Formed from the Reaction of Sulfur

Sulfuryl dichloride may be formed from the reaction of sulfur dioxide and chlorine. SO₂(g) + Cl₂(g) → SO₂Cl₂(g) What is ΔG°_rxn for this reaction at 600 K?

A) -162.8 kJ/mol
B) -40.1 kJ/mol
C) -28.4 kJ/mol
D) 28.4 kJ/mol
E) 162.8 kJ/mol