What was an impact of the United States entry into World War I?

The Ottoman Empire immediately surrendered to the Allied powers, realizing that its fight was futile.
Tensions developed between American and French troops over who would occupy the best trenches.
Britain shifted most of its troops to the eastern front because they were no longer needed in France.
The arrival of fresh troops to the Allied side forced Germany to agree to a cease-fire within a year.
D?

I agree.

The correct answer is D. The arrival of fresh troops to the Allied side forced Germany to agree to a cease-fire within a year.

To get this answer, we need to understand the impact of the United States' entry into World War I. The United States officially entered the war on April 6, 1917, almost three years after the war had started. The impact of this entry was significant for a few reasons.

Firstly, the arrival of fresh troops from the United States boosted the overall strength of the Allied powers. By joining the war effort, the United States brought in a large number of troops, resources, and industrial power that helped tip the balance in favor of the Allies.

Secondly, the United States' entry into the war put pressure on Germany. The German army was already exhausted from years of fighting and facing supply shortages. The arrival of the American troops added to the military pressure on Germany, challenging their ability to continue fighting.

Ultimately, the combination of the United States' fresh troops and the mounting pressure on Germany contributed to their decision to agree to a cease-fire. On November 11, 1918, Germany signed an armistice agreement with the Allies, effectively ending the war.

So, the correct answer is D. The arrival of fresh troops to the Allied side forced Germany to agree to a cease-fire within a year.