Answer:
D.)
Step-by-step explanation:
This spurt of aluminum production in Washington had nothing to do with aluminum deposits. Rather, this was brought about by to dramatic changes—the beginning of World War II, and the opening of several large dams in Washington State. The abundance of hydroelectric power from recently built large dams (like the famous Grand Coulee Dam, the largest in the world at that time) aided the powering of aluminum factories in such cities as Vancouver, Tacoma, and Wenatchee. With the entrance of the United States into World War II, the demand for aluminum production also increased. (Most warplanes were built primarily of aluminum; the typical heavy bomber required 15000 pounds of that metal!) And since the foremost American producer of warplanes—Boeing—was located in Seattle, Washington was an ideal location for the placement of wartime aluminum factories.