I believe it is C but I have not learned about this in a while.
I hope this helps and it is not wrong.
Answer: The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.
<span>decimating the population, leaving the survivors wealthier</span>
In the early 20th century, muckrakers were able to influence American society mainly by 4. exposing corruption in business and government. These muckrakers (whose name comes from the idea of raking muck or gunk) were oftentimes reporters writing at a period of unprecedented press production and distribution. With that, they were able to write about corruption and rest assured it would be read by a great number of people who would then speak up against the corruption.
The answer is C
hoped it helped