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

(1 point)
Responses

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.

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

It resulted in more U-boat attacks on American ships.
It increased American public opinion against Germany.

pick one