If Covariance of a stock's return with the market's return $(CO{V}_{sm})=38\mathrm{.}77,$ Standard deviation of the market $(O_m)=4\mathrm{.}682\%,$ the market risk premium is $5\%$ and risk$-$free rate is $2\%,$ what is the expected rate of return of the stock?

$11\mathrm{.}89\%$

$10\mathrm{.}85\%$

$12\mathrm{.}30\%$