19. The mayor of Trenton is considering the purchase of a new computer system for the city 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: PV of $1 at V of an ordinary Year or 10% annuity at 10% Period .909 1.736 2.487 3.170 3.791 $20,000 25,000 0.826 30,000 0.909 2 0.751 15,0000.683 0.621 4 12,000 If Trenton uses a 10% discount rate for capital-budgeting decisions, the net present value of the computer system would be: A. $489. B. $4,057. C. $11,658 D. $63,342. E. $79,057