Alpha Corp has issued 12 -year bonds that have an 8.80% coupon rate with semi-annual payments. The bonds currently sell for $783.38 and the companys tax rate is 40%. What is the after-tax cost of debt that would be used in calculating the companies weighted average cost of capital? a. 7.38% b. 12.30% c. 3.69% d. 8.80% e. 5.28%