Why was the Zimmerman Telegram a contributing factor to the U.S. declaration of war?

(1 point)
Responses

It revealed that Mexico was going to enter the war with the Central Powers.
It revealed that Mexico was going to enter the war with the Central Powers.

It promised Mexico that Germany would help it reclaim territory in the U.S. if Mexico entered the war against the United States.
It promised Mexico that Germany would help it reclaim territory in the U.S. if Mexico entered the war against the United States.

It showed that Mexico was passing U.S. military secrets to the Germans.
It showed that Mexico was passing U.S. military secrets to the Germans.

It contained military commands from the Germans to the Mexican government.

It promised Mexico that Germany would help it reclaim territory in the U.S. if Mexico entered the war against the United States.