Respuesta :
Building a Water-Filtration plant near a reservoir. As the other 3 are government run. The water filtration plant would save the citizens taxes which means more spending money.
the answer is: building a water-filtration plant near a reservoir
Cost-benefit analysis was being done to make sure that the benefit that can be acquired from a certain project would outweigh the total expense needed to make that project happen.
projects that have really high cost and would affect largest number of people tend to be the one that most-likely used cost-benefit analysis. From the options , building a water-filtration plant near a reservoir would fulfill both criteria.