A taxable bond has a coupon rate of $5\mathrm{.}14$ percent and a YTM of $5\mathrm{.}43$ percent. If an investor has a marginal tax rate of $39$ percent, what is the equivalent aftertax yield?

Multiple Choice

$8\mathrm{.}43\%$

$8\mathrm{.}90\%$

$6\mathrm{.}02\%$

$3\mathrm{.}31\%$

$3\mathrm{.}14\%$