Plz help Which group of historical events had the most to do with abolition?

The Fugitive Slave Act, the Dred Scott decision, and the Kansas-Nebraska Act
The Compromise of 1850, the Mexican-American War, and the Gadsden Purchase
The annexation of California, the Anthony Burns case, and the Harper's Ferry revolt
The Louisiana Purchase, the Missouri Compromise of 1820, and the annexation of Texas

What could have been done to stop the illegal voting? what about the violence?

Need asap). based on the government system in the united states, which individual activity is used to directly influence legislative decisions? source: florida department of education. ( a) watching political debates on television, ( b) gathering signatures for a petition, ( c) discussing political issues at work, ( d) collecting opinions for a yearbook. ( question 2) -- i posted a picture of the question and answer choices.

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia