QUESTION 5 Which of these has the longest payback period assuming no inflation rate and no rate of return? O 1.300,000 at 100,000 a year O 2.500,000 at 50,000 a year 3.1 million at 500,000 a year 4.100,000 at 9,000 a year 05.200,000 at 30,000 a year