How did submarine warfare impact the U.S. decision to enter the war?

Question

anonymous · Answer

The United States entered the war because Germany used submarines to destroy British shipping.

 The United States entered the war after Germany destroyed American made submarin

The United States felt they could positively impact the war for Allied forces through new submarine technologies.

 The United States felt compelled to enter the war in response to Germany's use of submarines to kill civilians.
es

anonymous · Answer

I remember learning this at some times, I believe it's A. I remember submarines attacking non military ships. And none of the others really make sense, I just want to be sure.

anonymous · Answer

@Rag433 Can you help me out?

toots · Answer

The United States felt compelled to enter the war in response to Germany's use of submarines to kill civilians.