A firm is considering an investment project that has the following cash flows: Year Cash Flow 0 -$1,000 1 400 2 300 3 500 4 400 If the firm's WACC (Weighted Average Cost of Capital) is 10%, the project's payback period and net present value (NPV) are closest to: a. 2.4 years and $600. O b. 2.4 years and $260. O c. 2.6 years and $300. O d. 2.6 years and $260