How did the Zimmermann Note lead the United States closer to war?

(1 point)
Responses
(only 1 is correct)
It caused the United States to end diplomatic relations with Germany.
It caused the United States to end diplomatic relations with Germany.

It resulted in more U-boat attacks on American ships.
It resulted in more U-boat attacks on American ships.

It increased American public opinion against Germany.
It increased American public opinion against Germany.

It spread democracy and the Allied cause.

1 answer

It caused the United States to end diplomatic relations with Germany.