What did the discovery of the zimmerman telegram influence the united states to do? a) declare war on mexico b) declare war on germany c) adopt a policy of isolationism d) give financial support to the central powers

B) Declare war on Germany

Explanation:

The Zimmermann telegram was a telegram sent by Arthur Zimmermann, Minister of Foreign Affairs of the German Empire, on January 16, 1917 (during the First World War), to his ambassador to Mexico, Count Heinrich von Eckardt. In it the ambassador was instructed to bring to the Mexican government a proposal to form an alliance against the United States. It was intercepted by the British espionage services, and its content accelerated the entry of the United States into the war.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.