Hydro Systems has 15-year bonds outstanding with a coupon rate of 5 percent. Interest is paid annually. The face amount of each bond is $1,000. What is the company's pretax cost of debt if the bonds currently sell for $1,100? A) 5.36 percent B) 4.09 percent C) 4.71 percent D) 5.55 percent E) 5.22 percent