XYZ Enterprises is considering investing in a new machine at a cost of E150,000 The respective cash flows are as follows: Year 1 50,000 Year 2 70,000 Year 3 30,000 Year 4 E20,000 Year 5 15,000 What is the payback period? A 3.5 years B 3.2 years 2.5 years 3.0 years