another choice is e.) 18.1

just would not fit in photo

Bond A has a price of 2,750 at an annual effective yield rate of 6%. The modified duration of the bond is 12. Bond B has a price of 2,000 at an annual effective yield rate of 6%. The modified duration of the bond is ModDB. If the annual yield rate drops by 2%, both estimated bond prices increase by the same dollar amount using the first-order Macaulay approximation. Calculate ModDB. 13.5 14.2 15.8 16.5