Respuesta :
This is a hard one... but I believe it is either C or D. We know that wounded Allied soldiers were a big issue during the war and a big reason as to why the U.S. joined was to gain land and protect its allies that it related to (mainly being Britain). D is also a reasonable answer, but I highly doubt it is the other options. Double check your history book, but I think the answer is C.
The army attempted to deploy troops as soon as possible after declaring war. The exhausted British and French troops, who had been fighting since August 1914, desperately needed the American forces' support.
When General John Joseph "Black Jack" Pershing was named supreme commander of the American army in France in May 1917, the American Expeditionary Forces (AEF) were constituted.
So, Option C is correct.
The other Options are incorrect as:
- Option A is incorrect as launching an offensive to end the war was not how U.S troops were primarily used in ww1.
- Option B is incorrect as they did not replace civilian workers in wartime industries.
- Option D is incorrect as protection for supplies was not how U.S. troops primarily used in WW1.
Thus Option C is the correct way how US troops were primarily used in WW1.
For more information about U.S. troops refer to the link:
https://brainly.com/question/14977563