Waller, Inc., is trying to determine its cost of debt. The firm has a debt issue outstanding with 15 years to maturity that is quoted at 102 percent of face value. The issue makes semiannual payments and has an embedded cost of 9 percent annually. Required: (a) What is the company's pretax cost of debt? 9.11% 9.20% 8.32% 8.76% If the tax rate is 33 percent, what is the aftertax cost of debt? 5.57% 6.10% 5.87% 6.16% 4.78%