4) Consider two mutually exclusive projects, nd the crossover rate and choose the right answer: Year Project A Project B 0 1000 900 1 300 650 2 500 200 3 -300 -100 a. The crossover rate is 4.91% and for a discount rate greater than the crossover rate I select project A b. The crossover rate is 4.91% and for a discount rate greater than the crossover rate I select project B c. The crossover rate is 6.72% and for a discount rate greater than the crossover rate I select project A d. The crossover rate is 6.72% and for a discount rate greater than the crossover rate I select project B