Which option is the better deal?accounting?

schallville is considering two contracts to pave Broad Street. the first contractor bid $20,000 for the job and with maintenance of $1,000 per year, will guarantee the surface for five years. The second contractor bib $14,000 for the same section of the road and with maintenance expenses of $1,500 per year, will guarantee the surface for four years. assuming a discount rate of 8 percent, which option is the better deal and why?