why did Dred Scott the. Sanford decision anger Northerners?
1. I made slavery legal in the territories.
2. It sought to come to the series of compromises on slavery.
3. It allowed for expansion of slavery into the north.
4. Created popular sovereignty as the rule of all territories.
The correct option is:
3. It allowed for expansion of slavery into the North.
The Dred Scott v. Sanford decision angered Northerners because it declared that slaves were property and therefore could be brought into any state, including free states in the North. This decision invalidated the Missouri Compromise of 1820, which prohibited slavery in certain territories, and it was seen as a major victory for pro-slavery forces, fueling the tensions between the North and South leading up to the American Civil War.