What is the cost of equity for a firm that has a beta of $1\mathrm{.}22$ if the risk$-$free rate of return is $1\mathrm{.}4$ percent and the expected market return is $6\mathrm{.}6$ percent?A$)6\mathrm{.}60\%$B$)7\mathrm{.}74\%$C$)8\mathrm{.}27\%$D$)7\mathrm{.}60\%$E$)2\mathrm{.}03\%$