Sandhill has determined that it could issue $1050 face value bonds with an 8 percent coupon paid semiannually and a 5-year maturity at $954.05 per bond. If Sandhill's marginal tax rate is 36 percent, its after-tax cost of debt is closest to: 6.6 percent. 6.9 percent. 6.2 percent. 6.3 percent