You have been offered a unique investment opportunity. If you invest $11,500 today, you will receive $575 one year from now, $1,725 two years from now, and $11,500 ten years from now. a. What is the NPV of the opportunity if the cost of capital is 6.4% per year? Should you take the opportunity? b. What is the NPV of the opportunity if the cost of capital is 2.4% per year? Should you take it now? a. What is the NPV of the opportunity if the cost of capital is 6.4% per year? If the cost of capital is 6.4% per year, the NPV is $ (Round to the nearest cent.) Should you take the opportunity? (Select from the drop-down menu.) You take this opportunity. b. What is the NPV of the opportunity if the cost of capital is 2.4% per year? If the cost of capital is 2.4% per year, the NPV is $ . (Round to the nearest cent.) Should you take it now? (Select from the drop-down menu.) You take this opportunity at the new cost of capital