Determine $\Delta$ S ^°rxn for N₂O₄(g) $\leftrightarrow$ 2NO₂(g) Given the Following Information

Determine $\Delta$ S ^°rxn for N₂O₄(g) $\leftrightarrow$ 2NO₂(g) given the following information: $$\begin{array} { l c } \text { Substance } & \boldsymbol { S } ^ { \circ } ( \mathbf { J } / \mathbf { m o l } \cdot \mathbf { K } ) \\\mathrm { N } _ { 2 } \mathrm { O } _ { 4 } ( g ) & 304.3 \\\mathrm { NO } _ { 2 } ( g ) & 240.45\end{array}$$

A) +176.7 J/K
B) -63.8 J/K
C) +63.8 J/K
D) -50.7 J/K
E) -176.7 J/K