Answer:
The correct answer is A. The section of the Compromise of 1850 that angered the North the most and may have actually fueled more tensions between the North and the South was regarding the new Fugitive Slave Law.
Step-by-step explanation:
The Fugitive Slave Law was approved by the United States Congress on September 18, 1850, as part of the Compromise of 1850 between the slave interests of the southern states of the United States and the Free-Soilers of the north. This provision - promulgated during the presidency of Millard Fillmore - was one of the most controversial, among the acts adopted in the context of the Compromise.
The law was only relatively rarely applied in the northern states. A number of Northern states issued, as far as they could, complementary prescriptions, requiring, for example, that a jury had to decide whether or not someone was actually an escaped slave. Other states banned the detention of slaves who had escaped in local prisons to organize their repatriation. For all escaped slaves who had settled in the northern states, however, the law was a threat to their existence. Many fled further north, not least with the help of the Underground Railroad, and settled in Canada.