North Korea, led by a communist government, invaded south Korea. This was the immediate cause. It was seen as a communist attempt to Overtake an Allie of the US and therefore, caused the US to intervene. As well as 15 other nations which were part of the United Nations. So i would say the answer is <span>C) North Korea embraced communism while South Korea chose democracy. </span>
The anti-federalists believed that the Constitution would take away critical powers from the states, and warned that without a Bill of Rights the government might also take away the rights of the people that were just won in the Revolution.
Montesquieu proposed that the government should be divided into separate branches, also known as separation of powers. This was to provide checks and balances within the government and to prevent power from being concentrated to one person or branch.