Be the president of the United States
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.
I say Jerusalem but not for sure.