Key Rate Duration for Portfolio 1 Key Rate Duration for Portfolio 2 Key Rate Duration for Portfolio 3 % of Bonds Duration Duration % of Bonds Duration % of Bonds 12% 1 to 2 years 0% 1 to 2 years 25% 1 to 2 years 15% 2 to 3 years 0% 2 to 3 years 15% 2 to 3 years 15% 3 to 4 years 0% 3 to 4 years 8% 3 to 4 years 15% 4 to 5 years 100% 4 to 5 years 5% 4 to 5 years 15% 6 to 7 years 0% 6 to 7 years 7% 6 to 7 years 15% 7 to 8 years 0% 7 to 8 years 15% 7 to 8 years 13% 8 to 9 years 0% 8 to 9 years 25% % to 9 years 81818 Which of the above portfolios is a bullet approach to fixed income portfolio management