The Everglades is a unique ecosystem of aquatic birds, plants and animals. For this area to thrive, it must be protected. Which of the following would have the least effect on the water flow through the Everglades?

A.) Planting trees that require an abundance of water for growth

B.) Constructing a road from the east to the west coast of South Florida

C.) Building irrigation canals for farmers to obtain water for their crops

D.) Overfishing of native species