How was america's prosperity intertwined with the military fortunes of the allies?

The correct answer to this open question is the following.

America's prosperity was intertwined with the military fortunes of the allies in that the United States provided troops and supplies to the Allies during World War 1.

President Woodrow Wilson always tried to maintain a foreign policy of neutrality in the early stages of World War 1. He did not want the US to participate in the European conflict. But that did not impede some American industries to send supplies to the war front. Everything changed when the US intelligence intercepted the Zimmerman telegraph in which the Germans asked for the help of Mexico in the war and when the German navy sank the Lusitania ship. Those incidents made Wilson asked the US Congress for a declaration of war.

the answer is c.

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ayatollah khomeini can best be described as the leader who declared iran to be an islamic republic.