This system would be called the "totalitarian system".
Smallpox took its toll on the Aztecs in several ways. First, it killed many of its victims outright, particularly infants and young children.
The basic principle of Marxism is, there should be equality. Karl Marx believed in a utopian society wherein people are equal and classless. But in order to achieve this utopian society, there are three phases that should happen. First, a revolution should take place. This is because of class stuggle. The rich often times exploit the working class and inequal distrubution of goods. Second, a new leader or dictator must lead. In order to achieve the utopian society, they must rid off the capitalist who are in the government. And lastly, a new government be created . They must create a government that follows the principles of socialism or equality.
An example is The Fugitive Slave Act. Answer B
Manifest Destiny is the belief that Americans were destined to expand across North America from coast to coast.
The Emancipation Proclamation is an executive order by Abraham Lincoln freeing the slaves.
The Monroe Doctrine was a United States policy of opposing European colonialism into the Americas.
Lastly, The Louisiana Purchase was the purchase of the Louisiana territory by the US from France.
Manifest Destiny is the best answer.