D Question 15 1.33 pts A pension fund manager determines the interest rate sensitivity of his bond portfolio, under different interest rate scenarios, to be as follows: 6% Value of Interest bond rate portfolio $510.1 million $455.4 7% million $373.6 million 8% What is the closest effective duration of the portfolio to 100 bps change in benchmark rates? 1.49 14.99 29.97 59.94 Cannot be determined