Which factor most contributed to the United States joining World War I on the side of the Allied powers?
A. German efforts to form a military alliance with Mexico
B. Republican demands that the United States obtain more colonies
C. American worries about the rising power of Great Britain
D. British blockades of ports controlled by the Central powers

The answer is A!

Explanation: In WW2 the Allies had decoded a message to Mexico asking them to join if Mexico said yes the Germans would get back the land Mexico lost from the Mexican American War!

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the

explanation:

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