which events in 1917 caused the united states to enter world war i? check all that apply.\nbritain…

which events in 1917 caused the united states to enter world war i? check all that apply.\nbritain intercepted the zimmerman telegram.\ngermany sank the passenger ship lusitania.\nmexico attacked the united states on us soil.\ngermany resumed unrestricted submarine warfare.\nbritain and france asked america to join the war.
Answer
Brief Explanations:
- The Zimmerman Telegram was intercepted by Britain in 1917. It proposed a military alliance between Germany and Mexico against the US.
- Germany resumed unrestricted submarine warfare in 1917, which directly threatened US ships and interests.
Answer:
Britain intercepted the Zimmerman Telegram. Germany resumed unrestricted submarine warfare.