Answer:
D
Explanation:
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.
Civil Service Commission<span> was a government agency of the federal government of the United States and was created to select employees of federal government on merit rather than relationships.</span>
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