Anew storm drainage system must be constructed right away to reduce periodic flooding that occurs in a city that is in a valley. five mutually exclusive designs have been proposed, and their present worth (in thousands of dollars) of costs and benefits are the following. system 1 2 3 4 5pw of cost $1000 $4000 $4000 $10,000 $14,000pw of benefits $8000 $8000 $14,000 $16,000 $24,000which sytem has the greatest b-c ratio?
i think it is d water
they will receive a refund
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