You have been provided with the following information concerning a particular bond; Bond's duration in years 18; Bond's maturity in years 30; Bond's modified duration in years 16.9; Bond's yield to maturity 6.5 percent; Based on the above information, if the market interest rate increases by three quarters of one percent (0.75 percent), what will be the percentage change in the bond's price? a. +0.750 percent b. -0.750 percent c. +12.675 percent d. -12.675 percent