A firm with a 12 percent cost of capital is considering a project for this year's capital budget. The project's expected after-tax cash flows are as follows: Year: Cash flow: 1 0 -$15.000 4 2 S6.600 3 S5,600 $6,900 $7.200 Calculate the project's payback period. O 2.27 years O 2.00 years O 3.00 years 0 2.50 years O 2.73 years