According to the map above, which of the following statements best describes water scarcity in the United States?
A.
Water scarcity is a problem for everyone throughout the US.
B.
Water scarcity is not a concern for anyone in the US.
C.
Water scarcity in the Southwest is caused by climatic issues.
D.
Water scarcity in the Southwest is caused by a lack of funding for water treatment plants, wells, and other water services.