The expected market return is $12$ percent. The risk$-$free rate of return is $6$ percent, and Inept Corp. is $30\%$ riskier than the general market. Their required rate of return based on CAPM $($R$=$Rf$+$b$($MRP$))$ is

Question $37$ options:

$15\mathrm{.}6\%$

$23\mathrm{.}4\%$

$7\mathrm{.}8\%$

$13\mathrm{.}8\%$