What was the impact of the u. s. decision to enter world war 1?

a. with american the russians were able to successfully take on the germans
b. the germans were overwhelmed and decided to surrender
c. the american entry into the war brought very few changes
d. the size and enthusiasm of the american forces bolstered the french and british

B. the Germans were overwhelmed and decided to surrender

Explanation:

The entry of the US into WWI in 1917 had a significative impact on the war. Additional resources, firepower and troops tipped the balance in favor of the Allies. Though it declared war in 1917, US troops did not see action until 1918, when the American forces were ready to operate.

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