If the cost of a project is $80,000 and the cash inflows are as given in the table below, what is the payback period for the project? Year 1 2 CF $15,000 $21,000 $27,000 $35,000 $38,000 3 4 5 3.0 years 4.2 years 3.9 years 3.5 years 2.8 years