The correct answer is:
1. The United States took on a larger role in world affairs after World War II.
After World War II, the United States emerged as a global superpower due to its economic strength, military power, and political influence. The U.S. played a significant role in the establishment of international organizations like the United Nations and became a key player in shaping global politics and policies. The country took on leadership roles in promoting democracy, supporting allies through initiatives like the Marshall Plan, and engaging in military interventions during the Cold War to contain the spread of communism. Overall, the U.S.'s role in the world significantly expanded post-World War II.
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