What Do the Legal Cases Over Slavery and Black Rights

What do the legal cases over slavery and black rights in Massachusetts in the 1780s tell you about that colony and her black residents?

A) Black residents rarely won legal cases, as racism was well entrenched in the law.
B) Black residents rarely attempted change, since they were often illiterate, uneducated and had no idea of freedom or the possibility of their rights under the law.
C) The legal cases were almost always instigated by white lawyers or activists interested in abolishing slavery, and had little to do with the blacks in the area.
D) In some cases, the courts seemed willing to follow the letter of the law and apply equality and rights across the races.