Cummings Products is considering two mutually exclusive investments whose expected net cash flows are as follows: a. Construct NPV profiles for Projects A and B. b. What is each project's IRR? c. If each project's cost of capital were 10%, which project, if either, should be selected? If the cost of capital were 17%, what would be the proper choice? d. What is each project's MIRR at the cost of capital of 10\%? At 17\%? (Hint: Consider Period 7 as the end of Project B's life.) e. What is the crossover rate, and what is its significance