Early Settlers in the Town of Dry Gulch Drilled Wells

Early settlers in the town of Dry Gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town.(An aquifer is an underground body of water. ) As more people settled in Dry Gulch,the aquifer level fell and new wells had to be drilled deeper at higher cost.
Refer to the information given above.The town council has proposed putting a meter on each household's pump,and charging residents for each gallon of water used.This would:

A) not change water use.
B) price an un-priced resource,increasing incentives to avoid wasting water.
C) convert private property to public property.
D) reduce total economic surplus.