The correct answer is the Fugitive Slave Act.
Slavery refers to the institution of enslaving people. This shows why the first answer cannot be correct.
Abolitionism refers to a belief that slavery should be removed from a society. This is why the second answer is incorrect.
The Underground Railroad consisted of a series of secret trails and safe houses that helped slaves escape from the South to the North. This shows why the third answer cannot be correct.
The only correct answer is the Fugitive Slave Act. This law angered Northerners, as they were now forced to catch slaves and help to return them to the South.
