Given the Following Data for the Reaction A $\rightarrow$ B, Determine the Activation Energy, E_a, of the Reaction

Given the following data for the reaction A $\rightarrow$ B, determine the activation energy, E_a, of the reaction. $$\begin{array} { c c } \boldsymbol { k } ( \boldsymbol { M } / \mathrm { s } ) & \boldsymbol { T } ( \mathbf { K } ) \\0.730 & 250 \\0.739 & 450\end{array}$$

A) 54.4 J/mol
B) 6.89 J/mol
C) 39.9 J/mol
D) 57.3 J/mol
E) 374 J/mol