Please answer the above question.

Mojo Mining has a bond outstanding that sells for $2,165 and matures in 17 years. The bond pays semiannual coupons and has a coupon rate of 7.06 percent. The par value is $2,000. If the company's tax rate is 21 percent, what is the aftertax cost of debt? Multiple Choice 4.17% 6.02% 6.46% 4.95% 3.63%