Calculate the required rate of return for a company assuming that $(1)$ investors expect a $1\mathrm{.}5\%$ rate of inflation in the future, $(2)$ the nominal risk$-$free rate is $3\%,(3)$ the expected market risk premium is $7\%,(4)$ the firm has a beta of $0\mathrm{.}77$ and $(5)$ its realized rate of return has averaged $16\mathrm{.}0\%$ over the last $5$ years.

$9\mathrm{.}89\%$

$9\mathrm{.}55\%$

$6\mathrm{.}43\%$

$8\mathrm{.}39\%$

$6\mathrm{.}08\%$