Requirements 1. Compute the payback, the ARR, the NPV, and the profitability index of these two plans. 2. Which expansion plan should Mohammed choose? Why? Estimate Plan A's IRR. How does the IRR compare with the company's required rate of return? Requirements 1. Compute the payback, the ARR, the NPV, and the profitability index of these two plans. 2. Which expansion plan should Mohammed choose? Why? Estimate Plan A's IRR. How does the IRR compare with the company's required rate of return