Answer:
Option D.
Explanation:
The Fugitive Slave Act, is the right answer.
The Congress of the United States passed the Fugitive Slave Act on 18th September 1850 as a piece of the 1850 Compromise between the Northern Free-Soilers and the Southern slave-holding. This act was one of the most provocative components of the 1850 compromise and increased Northern worries of a "menial power intrigue". It claimed that all escaped workers, upon acquisition, be delivered to their preceptors and that leaders and residents of free states had to assist.
