Everything else equal, which of the following bonds will be least sensitive to a change in interest rates? A bond with 8 years to maturity and a 6.6% coupon rate A bond with 10 years to maturity and a 5.8% coupon rate A bond with 5 years to maturity and a 5.8% coupon rate A bond with 10 years to maturity and a 7.4% coupon rate A bond with 5 years to maturity and a 7.4% coupon rate