As the temperature is raised from $20^{\circ}$ to $40^{\circ}C$ , the average kinetic energy of neon atoms charges by a factor of which of the following ?

Question

$\begin{array}{1 1} (a)\;\large\frac{1}{2} \\ (b)\;2 \\ (c)\; \large\frac{293}{313} \\ (d)\;\sqrt{\large\frac{313}{293}} \end{array}$