KSS has $1000 par value bonds with a 7% coupon rate and coupons paid semi-annually that mature in 25 years. The bonds are selling for $1,100. KSS has an average tax rate of 30%. KSS is in the 40% marginal tax bracket. What is the after tax cost of debt? O 3.72% O 3.95% O 6.21% 5.63%