Because they share some cultures
The five events that made the United States a superpower are the:
1. Rise of USA's Economy after the events of World War 1
2. USA's role in World War 2 that toughens their standing as one of the most powerful country
3. After events in World War 2 where USA helped to rebuild Europe and gained economic power and influence
4. United Nations and North Atlantic Treaty Organization that is mostly founded and controlled by USA along with other founding nations.
5. The fall of the USSR during Cold War.
This 5 events made the USA a superpower because of USA's victorious battle against its enemy countries and World Wars, its big economy that boomed in several decades and helped many countries, and their founding of several national organizations that caters to every country.
The best and most correct answer among the choices provided by your question is the third choice or letter C which states that "Northern Whigs and Republicans supported the Compromise because it brought Kansas and Nebraska into the Union as "free" states, while Southern Democrats were appeased with the repeal of the Tariff of 1832." This is the <span>BEST description of why the Compromise of 1850 was successful in defusing the sectional conflict between both sides of the slavery issue.</span>
I need a story or something to understand