Why were people fleeing slavery using the Underground Railroad to escape into Canada?
A.
Canada encouraged people fleeing slavery in the United States to become residents there.
B.
Although free African Americans could live in the northern United States, they preferred to live in a country where no slavery was allowed.
C.
Both federal laws and some state laws allowed fugitives to be caught and returned to slavery in the South, even if they had reached a state that did not permit slavery.
D.
Canada was free of discrimination against African Americans and offered better job opportunities.