Question

which of the following was a reason for entrance of the United States into ww1

Answer 1

I ant see the options but the answer is the bombing of pearl harbour by japan

Answer 2

World War I Begins. ...
The Lusitania Sinks. ...
Germany's U-Boat Submarine Warfare Resumes. ...
The Zimmerman Telegram. ...
The U.S. Declares War on Germany.