Answer:
Community A
Step-by-step explanation:
Community A most likely use hydroelectric power for generating most of their electricity. 
Hydroelectric power utilizes the energy from water to produce electricity. 
A water body is dammed, then channeled for driving a turbine which in turn generates electricity by induction. 
- The water used is a renewable resource. 
- This method leads to destruction of the habitat of the fish and other aquatic life in that environment.