Galvatron Metals has a bond outstanding with a coupon rate of $5\mathrm{.}8$ percent and semiannual payments. The bond currently sells for $$944$ and matures in $20$ years. The par value is $$1,000$ and the company's tax rate is $23$ percent. What is the company's aftertax cost of debt?

Multiple Choice

$2\mathrm{.}94\%$

$5\mathrm{.}13\%$

$4\mathrm{.}48\%$

$3\mathrm{.}15\%$

$4\mathrm{.}85\%$