Which one of the following bonds would you select it you thought macket interest rates were going to fall by 50 basis points over the next six months? a. A bond with a Macsulay duration of 6.72 years thar's currenty being pricod to yield 7.74% b. A bond with a Macailay duration of 18.64 years that's priced to yiekd 9.78%. c. A bond with a Macaulay duration of 7.51 years thas priced to yold 6.47%. a. The moditied duralion for a bond with a Macaulay duration of 6.72 yeass that's currently being piced to yold 7.74% is yeart. (Round to two docimat places )