Mojo Mining has a bond outstanding that sells for $$1,064$ and matures in $24$ years. The bond pays semiannual coupons and has a coupon rate of $6\mathrm{.}18$ percent. The par value is $$1,000.$ If the company's tax rate is $24$ percent, what is the aftertax cost of debt?

Multiple Choice

$5\mathrm{.}69\%$

$4\mathrm{.}58\%$

$3\mathrm{.}99\%$

$5\mathrm{.}31\%$

$4\mathrm{.}32\%$