Which one of the following bonds would you select if you thought market interest rates were going to fall by 50 basis points over the next 6 months? Assume semiannual coupon payments. a. A bond with a Macaulay duration of 8.46 years thats currently being priced to yield 7.5%. b. A bond with a Macaulay duration of 9.30 years thats currently being priced to yield 10%. c. A bond with a Macaulay duration of 8.75 years thats currently being priced to yield 5.75%.