XYZ stock has a beta of $1\mathrm{.}15,$ its required return is $9\mathrm{.}75\%,$ and the risk$-$free rate is $4\mathrm{.}25\%.$ Which of the following is closest to the required rate of return on the market portfolio?

a$)7\mathrm{.}53\%$

b$)8\mathrm{.}53\%$

c$)9\mathrm{.}03\%$

d$)10\mathrm{.}03\%$

e$)$ None of the above