You are thinking about buying a bond, but are worried about the fact that it's callable. The 15 -year bond is selling at par value and has a coupon rate of 5.5%. If the bond is called, it will pay a bond premium of $50 /bond, meaning you would get $1,050. The bond can be called in 5 years. What is the yield to call on this bond? 5.72% 5.50% 5.88% 6.38\%