Cooley Company's stock has a beta of $1\mathrm{.}38,$ the risk$-$free rate is $2\mathrm{.}60\%,$ and the market risk premium is $5\mathrm{.}50\%.$ What is the firm's required rate of return? Do not round your intermediate calculations.

a$.11\mathrm{.}18\%$

b$.7\mathrm{.}59\%$

c$.9\mathrm{.}09\%$

d$.10\mathrm{.}19\%$

e$.8\mathrm{.}10\%$