If the current rate on U$.$S$.$ Treasuries are $5\mathrm{.}3\%$ and the current rate on stocks are $8\%,$ then what is the risk premium to invest in stocks?

$2\mathrm{.}7\%$

$5\mathrm{.}3\%$

$8\%$

$13\mathrm{.}3\%$