It allows the grass and plants time to replace themselves when the animals migrate.
Answer:
Option A is the correct answer (Area Residents)
Explanation:
The area residents would gain from the benefits of having a cleaner water resources and they would be the one to enjoy thriving from a unique and thriving ecosystem.
A free rider is simply a person or group of people benefiting from a program without having to put any effort or pay a dime for it. In this light, it can be seen why the area residents are the free riders from the example.
Then the four seasonal periods will be twice as long as they are now.