Which was one major reason the United States entered World War I on the Allied side?

A.
Woodrow Wilson wanted to be a peacemaker.

B.
France invaded Germany and Germany was an ally of the United States.

C.
England violated the U.S. policy of neutrality.

D.
Germany attacked passenger ships and U.S. ships that carried supplies to the Allies.

Question

Which was one major reason the United States entered World War I on the Allied side?	
 
 A.
Woodrow Wilson wanted to be a peacemaker.
 
 B.
France invaded Germany and Germany was an ally of the United States.
 
 C.
England violated the U.S. policy of neutrality.
 
 D.
Germany attacked passenger ships and U.S. ships that carried supplies to the Allies.

anonymous · Answer

I believe this is D. 

The Germans bombed several American ships, killing almost thousands of innocent people.