One of the reasons america decided to enter world war 1, zimmerann telegram - a secret-coded message sent from ___________a.__________ to __________b.__________ asking them to join their alliance and fight against america. great britain intelligence intercepted and decoded the message and shared the information with america. question 2 options: a) a. serbia b austria hungary b) a. germany b. mexico c) a. mexico b. cuba d) a. france b. italy