Answer:
i onalsly dont know but i think A.
Explanation:
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The <u>Cold</u> <u>War</u> was the state of political hostility between countries without an outright declaration of war. The hot war ended, and the cold war started. The United States and the Soviet Union fought together against Germany. Since the end of the war, they became hostile to one another. Each worried about the strength of the other one.
To shorten the journey from the East Coast to the West Coast cutting the time in half.