Mojo Mining has a bond outstanding that sells for $1,052 and matures in 22 years. The bond pays semiannual coupons and has a coupon rate of 5.86 percent. The par value is $1,000. If the company's tax rate is 21 percent, what is the aftertax cost of debt?

• 3.12%

• 5.17%

• 5.54%

• 3.58%

• 4.31%