Although the United States was actively involved in World War I for only nineteen months, from April 1917 to November 1918, the mobilization of the economy was extraordinary. ... Over four millionAmericans served in the armed forces, and the U.S. economyturned out a vast supply of raw materials and munitions.
B is the answer
Explanation:Kayne told me
Answer:
The US promised to stop Communism or "contain it"
Answer
Europe
Explanation:
In 1900, Europe had more steel-producing countries than other continents. This is because Europe was leading the Industrial Revolution and had more factories and industries than any other part of the world. Steel was necessary to build those factories and industries. therefore, it's Europe.