Galvatron Metals has a bond outstanding with a coupon rate of 6.7 percent and semiannual payments. The bond currently sells for $1,863 and matures in 21 years. The par value is $2,000 and the company's tax rate is 21 percent. What is the company's aftertax cost of debt?

Multiple Choice

3.43%

4.67%

5.80%

4.07%

3.67%