Answer:
B) Millions of Americans joined the U.S. military
Explanation:
One of the reasons why the unemployment rate dramatically decreased during these years was because millions of Americans joined the U.S. military. This is because during these years, World War II was taking place. Although the United States had remained neutral during the first few years of the war, it decided to get involved after the Japanese attack on Pearl Harbor.
By the Treaty of Paris (signed Dec. 10, 1898), Spain renounced all claim to Cuba, ceded Guam and Puerto Rico to the United States, and transferred sovereignty over the Philippines to the United States for $20 million. The Spanish-American War was an important turning point in the history of both antagonists.May 14, 2010
