The market value of your assets equals the market value of your liabilities and the average duration of your assets equals the average duration of your liabilities. The convexity of your assets is 19.1 and the convexity of your liabilities equals 15.1. Is your portfolio immunized? Yes, because the average of 19.1 and 15.1 is greater than zero. No, because 15.1 is less than 19.1. No, because the average of 19.1 and 15.1 is greater than zero. Yes, because 19.1 is greater than 15.1