Answer :
the one that Revealed Germany's attempt to ally with Mexico against United states was :
A. the Zimmerman telegram
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A. the Zimmerman telegram
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Answer:
Option A.
Explanation:
The Zimmerman telegram, is the right answer.
The Zimmermann Telegram was a confidential strategic communication that appeared from the Foreign Office of Germany in the month of January in 1917. This telegram was a proposal from Germany to Mexico to form a militant union against the United States. According to the telegram, if the U.S. entered the First World War against Germany, Mexico would re-establish its control over Arizona, Texas and New Mexico.