After the Revolution, African-Americans in the North

After the Revolution, African-Americans in the North:

A) often wound up in a state similar to that of indentured servitude.
B) began fleeing to the South when they saw that the new states would not approve emancipation.
C) benefited greatly from the popularity of manumission (or voluntary emancipation of slaves by whites) .
D) were happy that the process of abolition under the new state constitutions meant that all current slaves would be free during their lifetimes.