Respuesta :
In the end, the United States failed to join the League of Nations.
What is the League of Nations?
The League of Nations was an international diplomatic group developed to solve external affairs after World War I. It helped to solve disputes between countries before the situation led to wars. Over some matters, the League achieved some victories but at times there were serious conflicts and disapproval too because some didn't go well with the authorities. But, the League effectively ceased operations during World War II.
Therefore, the (a) option is the correct answer.
To learn more about the League of Nations, refer here :
https://brainly.com/question/14108935
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