The U$.$S$.$ Treasury bill is yielding $3\mathrm{.}1$ percent while Kennesaw Corp. common stock has a beta of $2\mathrm{.}28$ and an expected return of $19\mathrm{.}3$ percent. What is the reward$-$to$-$risk ratio?

$6\mathrm{.}29$ percent

$6\mathrm{.}48$ percent

$6\mathrm{.}67$ percent

$7\mathrm{.}11$ percent