For the reaction at 298 K, (HCl(g) + NH₃(g) → NH₄Cl(s)), the values of (Δ H°) and (Δ S°) are -176 kJ and -284 J/K, respectively. What is the value of (Δ G°) at 298 K?
a) -116 kJ
b) -292 kJ
c) 116 kJ
d) 292 kJ