Question 1 onsider the following mutually exclusive investments Investment A: Investment B: T-0 -100 -100 120 30 20 100 a. Find IRRs for both projects b. Draw a graph, where you will show the NPV of each project as a function of its discount rate (i.e NPV on the vertical axis and r on the horizontal axis). Both NPVs should be on the same graph. c. Find the cross over rate d. Please describe as fully as possible which project is the best