Question 19 (1 point) To create a portfolio with a duration of 4 years using a 5-year zero-coupon bond and a 4-year 7% annual coupon bond with a yield to maturity of 8% and a duration of 3.62 years, one would have to invest of the portfolio value in the zero- coupon bond. 60% None of the answers is correct 28% 50% 55%