Which of the following bonds offers the highest current yield? a. A(n) 8.46%, 20-year bond quoted at 107.517. b. A(n) 14.10%, 15-year bond quoted at 179.195. c. A(n) 4.23%, 18-year bond quoted at 53.759. The current yield of the bond in part a is %. (Round to two decimal places.) The current yield of the bond in part b is %. (Round to two decimal places.) The current yield of the bond in partc is %. (Round to two decimal places.) Which of the three bonds offers the highest current yield? (Select the best answer below.) O A. The bond in part b has the highest current yield because it has the highest coupon rate and the highest market value. B. All of the above bonds have a current yield of approximately 7.87%. C. The bond in part a has the highest current yield because it is held for the longest period of time