25-year maturity, 6% coupon bond paying coupons semi-annually is callable in five years at a

call price of $1,200. The bond currently sells at a yield to maturity of 5%.

Part A. What is the yield to call?

Part B. What is the yield to call if the call price is only $1,100?

Part C. What is the yield to call if the call price is $1,050 but the bond can be called in ten years

instead of five years?