The following are the cash flows of two projects: Year 0 1 2 3 4 Project A Project B $ (390) $ (390) 220 290 220 290 220 290 220 a. Calculate the NPV for both projects if the discount rate is 12%. (Do not round intermediate calculations. Round your answers to 2 decimal places.) NPV Project Project A Project B b. Suppose that you can choose only one of these projects. Which would you choose? O Project B O Project A O Neither