20. The mayor of Trenton is considering the purchase of a new computer system for the city's tax department. The system costs $75,000 and has an expected life of five years. The mayor estimates the following savings will result if the system is purchased: Year Savings $20,000 25,000 30,000 15,000 12,000 2 4 What can be said about the computer system's internal rate of return if the net present value at 12% is positive? Trenton uses a 10% discount rate for capital-budgeting decisions A. The internal rate of return is greater than 12%. B. The internal rate of return is between 10% and 12%. C. The internal rate of return is less than 10%. D. The internal rate of return must be less than 5%. E. There is insufficient information to make any judgment about the internal rate of return