Question

What caused the United States to join the Allies in fighting World War I?

Answer
a. the German embargo on gasoline
b. the Germans’ use of unrestricted submarine warfare
c. the United States’s fear of the Austro-Hungarian powers
d. the sinking of the Titanic

Answer 1

C. the sinking of the Titanic

Answer 2

b. the Germans’ use of unrestricted submarine warfare-because the Germans sank many of America's non-military ships using submarines