What Is the Standard Entropy Change for the Following Reaction

Multiple Choice

What is the standard entropy change for the following reaction?
$$\begin{array} { l l l l l } & 4 \mathrm {~N} _ { 2 } ( \mathrm {~g} ) & + 12 \mathrm { H } _ { 2 } ( \mathrm {~g} ) & \rightarrow & 8 \mathrm { NH } _ { 3 } ( \mathrm {~g} ) \\\\S _ { 298 } ^ { 0 } & 191.5 & 130.6 && 192.3\end{array}$$ (J/mol?K)

A) -794.8 J/K?mol-rxn
B) 794.8 J/K?mol-rxn
C) 2948.8 J/K?mol-rxn
D) -2948.8 J/K?mol-rxn
E) -129.8 J/K?mol-rxn