Ummm this because of those and this
The Cuban Missile Crisis, October 1962. The Cuban Missile Crisis of October 1962 was a direct and dangerous confrontation between the United States and the Soviet Union during the Cold War and was the moment when the two superpowers came closest to nuclear conflict.
Answer:
I'm pretty sure that it is - It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
Explanation:
Hope this helped.
/~\ I believe the answer is:
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<em><u>C. Legislative, Executive, and the Supreme Court.</u></em>
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I hope this helps! /~\