Why is the distribution of aquifers in the region uneven?
A. Aquifers reform each year in large, flat areas where water collects after storms.
B. Aquifers form evenly in all areas, but people use the water at different rates in different locations.
C. Aquifers store water underground near locations where people have a high demand for the resource.
D. Aquifers form in areas with specific geologic layers that trap and store water over long periods of time.