Here are the cash-flow forecasts for two mutually exclusive projects: Year Cash Flows (dollars) Project A Project B 108 108 38 57 58 57 78 57 1 2 3 a-1. What is the NPV of each project if the opportunity cost of capital is 5%? (Do not round intermediate calculations. Round your answers to 2 decimal places.) a-2. Which project would you choose? b-1. What is the NPV of each project if the opportunity cost of capital is 15%? (Do not round intermediate calculations. Round your answers to 2 decimal places.) b-2. Which would you choose? Project A Project B a-1. a-2. NPV of each project if the opportunity cost of capital is 5% Which project would you choose? NPV of each project if the opportunity cost of capital is 15% Which would you choose? b-1. b-2