ADK Has 30,000 15-Year, 9 Percent Semi-Annual Coupon Bonds Outstanding

ADK has 30,000 15-year, 9 percent semi-annual coupon bonds outstanding. If the bonds currently sell for 90 percent of par and the firm pays an average tax rate of 21 percent, what will be the before-tax and after-tax component cost of debt?

A) 11.19 percent; 7.61 percent
B) 10.32 percent; 8.15 percent
C) 9.85 percent; 6.70 percent
D) 10.12 percent; 6.88 percent