3) An investment of $42,000 is expected to generate the following annual cash flows: Year 1 Year 2 Year 3 Year 4 $10,000 $15,000 $15,000 $12,000 Assume straight-line depreciation is used. Ignore income taxes. What is the payback period? A) 3.17 years B) 3.83 years C) 3 years D) 4 years