A capital investment project is estimated to have the after tax cash flows of $30,000 in year 0, $7,500 in year 1, $12,500 in year 2, $5,000 in year 3, 515,000 in year 4. The company utilizes a discount rate of 10% to evaluate capital projects. The payback period for the project is: a 3.15 b.2.50 C. 3.33 d. 2.16