10-17. Four mutually exclusive projects are being considered for a new 2-mile jogging track. The life of the track is expected to be 80 years, and the sponsoring agency’s MARR is 12% per year. Annual benefits to the public have been estimated by an advisory committee and are shown below. Use the B–C method (incrementally) to select the best jogging track. (10.9)

Alternative A B C D Initial cost $62,000 $52,000 $150,000 $55,000 Annual $10,000 $8,000 $20,000 $9,000 benefits B–C ratio 1.34 1.28 1.11 1.36