A Corporation's bonds have 25 years to maturity, an 8.75% coupon paid semiannually, and a $1,000 par value. The bond tass a 6.50% nominal yield wo maturity. bout it ean be called in 6 years at a price of 51,250 . What is the bond's nominal yield to call? a. 6.57%, b. 5,44% c. 5.81% d. 6.0286 e. 4.23%