You are evaluating an investment project and learn the following: 1. The project's NPV at a discount rate of 16% is +$ 15,879 2. The project's NPV at a discount rate of 20% is +$2,356 3. The project's NPV at a discount rate of 22% is -$923 Based on (1)-(iii) above you know the project's IRR must be: O (a) less than 16% (b) between 16% and 20% O (c) between 20% and 22% O (d) above 22%