Which of the following bonds has the shortest duration?
a) A bond with 20-year maturity, 10% coupon rate
b) A bond with 20-year maturity, 6% coupon rate
c) A bond with 10-year maturity, 6% coupon rate
d) A bond with 10-year maturity, 10% coupon rate
a) A bond with 20-year maturity, 10% coupon rate
b) A bond with 20-year maturity, 6% coupon rate
c) A bond with 10-year maturity, 6% coupon rate
d) A bond with 10-year maturity, 10% coupon rate