Bond A has protective covenants in its bond indenture, which are designed to protect bondholders. Bond Z is identical to Bond A in all aspects, except that its bond indenture does not contain any of these protective covenants. Which of the following statements is correct? a) Bond A trades at a higher price than Bond Z, and the yield to maturity of Bond A is lower than Bond Z. b) Bond A trades at a lower price than Bond Z, and the yield to maturity of Bond A is higher than Bond Z. c) Bond A trades at a higher price than Bond Z, and the yield to maturity of Bond A is higher than Bond Z. d) Bond A trades at a lower price than Bond Z, and the yield to maturity of Bond A is lower than Bond Z. Which of the following bonds has the highest interest rate risk? In other words, which bond has the highest duration? a) 10-year maturity, U.S. Treasury bond with a yield to maturity of 2.8% b) 20-year maturity, B-rated corporate bond with an annual coupon rate of 7% c) There is not enough information given to determine this. d) 30-year maturity, AA-rated zero-coupon corporate bond