5. One of two alternatives will be selected to reduce flood damage in a rural community in central Arizona. The estimates associated with each alternative are available. Use B/C analysis at a discount rate of 9% per year over a 20 year study period to determine which alternative should be selected. For analysis purposes only, assume that the benefits of reduced lood damage are available in years 7. 12. and 18 of the study period. 10 Retention Pond Channel 2,500,000 Initial Cost, $ 960,000 92000 Annual Maintenance. S/Year 30,000 Pent References 500,000 200.000 Reduced Flood Damage. S The AB/C ratio is The alternative that should be selected is the Click to select