Shanken Corporation issued a 30 year, 7 percent semiannual bond 7 years ago. The bond currently sells for 108 percent of its face value. The company's tax rate is 35 percent. What is the pretax cost of debt? What is the after tax cost of debt?

A 2.67%, 9.52%

B 8.56%, 7.37%

C 7%, 8.69%

D 6.33%, 4.12%