A liability of $28 million is due in 9 years' time. The yield curve is currently flat at 5% per annum. Th following 5 portfolios are available to invest in. Each portfolio comprises one of Bonds A, B, C and whose details are given below. Assume annual compounding for all bonds. Bond Term to Coupon rate maturity (yrs) Macaulay Face Value Duration (yrs) ($) 9 0.00% 9.00 100 B B 9 9 5.50% 17.37 100 C 14 11.16% 19.00 100 18 4.50% 12.53 100 i. 434,372 bonds of Type A ii. 174,296 bonds of Type B iii. 173,939 bonds of Type C iv. 112,123 bonds of Type C v. 297,381 bonds of Type D 8. It can be shown that the solution to the above immunization problem is to invest in: 119,146.29 Bonds of Type B and 60,655.01 Bonds of Type D. Based on the concept of duration and convexity, what is the percentage change in this portfolio if interest rates decrease by 1% at all maturities? Select ] [ Select ] None of the other answers provided are correct Increase by 9.082% er of bonds of Type C, such that the two immunizing Increase by 10.882% first immunizing condition refers to the fact that the Increase by 10.167% jent value of liabilities. The second condition refers to Increase by 8.571%