Of those land acquisitions which one doubled the size of the United States....
It would be C.
The answers C i'm pretty sure
The defining characteristics in the gilded age included individualism, urbanization, new values, art, and forms of entertainment. The Gilded Age refers to the era of rapid economic and population growth in the United States during the post?Civil War and post-Reconstruction eras of the late 19th century.
The U.S. army in Europe was under the command of General John J. Pershing. At first, the U.S. had few trained troops to send over to Europe. However, the army was quickly built up through the draft and volunteers. By the end of the war around 2 million U.S. troops were in France. American troops on way to the front march thru London Source: Department of Defense The U.S. troops arrived just in time to turn the tide of the war in favor of the Allies. Both sides were exhausted and running out of soldiers. The influx of fresh troops helped to boost the morale of the Allies and played a major role in the defeat of the Germans.