16 0/4 pts An anticipated investment of $400,000 is expected to yield the following annual operating income and net cash flow: Year Operating Net Cash Income Flow 1 $60,000 $140,000 2 50,000 130,000 3 50,000 130,000 4567 40,000 90,000 40,000 90,000 40,000 90,000 40,000 90,000 8 40,000 90,000 What is the payback period? 3 years 6 years 4 years 4 years: Incorrect. 5 years