The risk$-$free rate is $2\mathrm{.}5$ percent. Stock A has a beta $=1\mathrm{.}5$ and Stock $B$ has a beta $=1\mathrm{.}4.$ Stock A has a required return of $8\mathrm{.}2$ percent. What is Stc$$c$$ck B$\text{'}$s required return?

$7\mathrm{.}82\%$

$8\mathrm{.}72\%$

$8\mathrm{.}42\%$

$7\mathrm{.}52\%$

$8\mathrm{.}12\%$