Consider the Following Reaction at Constant Pressure

Consider the following reaction at constant pressure. Use the information here to determine the value of ΔS_surr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature. 4NH₃(g) + 3O₂(g) → 2N₂(g) + 6H₂O(g) Δ_rH = -1267 kJ

A) ΔS_surr = +12.67 kJ K^-1 mol^-1, reaction is not spontaneous
B) ΔS_surr = -12.67 kJ K^-1 mol^-1, reaction is spontaneous
C) ΔS_surr = +50.4 kJ K^-1 mol^-1, reaction is not spontaneous
D) ΔS_surr = +3.18 kJ K^-1 mol^-1, reaction is spontaneous
E) ΔS_surr = -3.18 kJ K^-1 mol^-1, reaction is not spontaneous