The expected market return is $16\%.$ The risk$-$free rate of return is $7\%,$ and ABC Pty Ltd has a beta of $1\mathrm{.}1.$ Their required rate of return is:

$($a$)17\mathrm{.}6\%.$

$($b$)16\mathrm{.}0\%$

$($c$)16\mathrm{.}9\%$

$($d$)23\mathrm{.}0\%$

$($e$)$ None of the above