Jsing an assumed interest rate of 6%, the present value of this stream of fixed cash outflows is 40 million. You are given $40 million to invest in U.S. Treasury bonds for the pension plan. Your poss insists that you only invest in 1-year and 10-year STRIPS. Your task is to minimize the exposure of the Sabanci pension fund to unexpected changes in the level of interest rates. Your berformance will be evaluated after one year. What is the duration of the obligation in year 2022 ? D) Describe - step by step - how you would choose and manage the portfolio of 1-year and 10ear STRIPS to minimize the exposure to interest rate risk