C, a plateau period is when you reach a nonmoving or even declining point
It was published in 1909.
The greatest superpower at the end of World War II was the United States, although it should be noted that the Soviet Union was seen as another great superpower as well.
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The key point of the Doctrine was to separate the influence in which The United States and European powers would have. Europe would have no intervention within the Western Hemisphere and likewise the United States would not become entangled in European affairs.
Explanation: