Tarpon Foods, Inc. sold a $1000 par value, non-callable bond several years ago that now has 10 years to maturity and a 8.00% annual coupon that is paid semi-annually. The bond currently sells for $960 and the company's tax rate is 40%. What is the after tax cost of debt for use in the WACC calculation? a. 4.98% b. 5.16% c. 5.83% d. 4.75%