21. Projects A and B are mutually exclusive. Project A has cash flows of $10,000, $5,100, $3,400, and $4,500 for years 0 to 3, respectively. Project B has cash flows of $10,000, $4.500, $3,400, and $5,100 for years 0 to 3, respectively. What is the crossover rate for these two projects? A. O percent B. 5.48 percent C. 6.71 percent D. 2.75 percent E. 4.94 percent 22. TL Lumber is evaluating a project with cash flows of -$12,800, $7,400, $11,600, and - $3.200 for years 0 to 3, respectively. Given an interest rate of 8 percent, what is the MIRR using the discounted approach? A. 13.25 percent B. 14.08 percent C. 15.40 percent D. 14.36 percent E. 19.23 percent