Which Represents the Experience of Free Blacks in the North

Which represents the experience of free blacks in the North during the period of the market revolution?

A) Even skilled workers faced limited economic opportunities.
B) An economically successful, but politically weak, middle class of black doctors and lawyers developed.
C) The return of the practice of apprenticeships made many free blacks effective slaves to their employers.
D) Free blacks comprised the majority of factory workers in Philadelphia and Baltimore.
E) Populations of free blacks in the East plummeted as many migrated west to secure free government land.