Question

Which statement describes a reason the United States entered World War I on the Allied side?

a. Most Americans believed that Europe's fight was also their fight.
b. German U-boats sank unarmed ships carrying American passengers.
c. President Wilson wanted to take possession of Germany's colonies.
d. Germany's invasion of Canada posed a direct threat to the United States.

Answer 1

b. German U-boats sank unarmed ships carrying American passengers.

Step-by-step explanation:

I took the quiz for K12 and got the answer correct.

Answer 2

One of the reasons why the United States entered World War I on the Allied side was because "b. German U-boats sank unarmed ships carrying American passengers," through a policy of "unrestricted" submarine warfare. There were also ideological and racial reasons for joining the Allies as well, however.