4. A corporate bond has a face value of $1,000 and a coupon rate of 6.5%. The bond matures in 10 years and has a current market price of $985. If the corporation sells more bonds it will incur flotation costs of $36 per bond. If the corporate tax rate is 34 %, what is the after tax cost of debt capital? (Points : 1) 5.71% 5.45% 5.18% 4.78%