19. A company has a $20,000 liability to be repaid in 5 years. The company can invest in two types of assets: 2-year zero coupon bonds and 8-year zero coupon bonds. Construct a portfolio consisting of only these two types of assets, based on Redington immunization. All cash flows are discounted at an effective interest rate of 8%. 19. A company has a $20,000 liability to be repaid in 5 years. The company can invest in two types of assets: 2-year zero coupon bonds and 8-year zero coupon bonds. Construct a portfolio consisting of only these two types of assets, based on Redington immunization. All cash flows are discounted at an effective interest rate of 8%