One factor that contributed to the U.S.'s decision to get involved in World War I and help the Allied powers was

Question

Responses
A Japan invading the U.S. naval base in Pearl Harbor.Japan invading the U.S. naval base in Pearl Harbor.
B France surrendering to Germany after repeated air bombing.France surrendering to Germany after repeated air bombing.
C Russia exiting the war and signing a peace treaty with Germany.Russia exiting the war and signing a peace treaty with Germany.
D Germany's attack on England and installing a "puppet" government.

Answer 1

The correct response is:

C Russia exiting the war and signing a peace treaty with Germany.

This factor contributed to the U.S. decision to enter World War I because it changed the balance of power in favor of the Central Powers and raised fears among the Allies about the potential for a German victory. Additionally, the U.S. was concerned about the implications of a Germany that could focus its efforts on the Western Front without having to contend with the Eastern Front after Russia's exit.