The name given to the loose organization of people dedicated to helping escaped slaves get to free territory was the "Under Ground Railroad." Hope this answer helped!
arguing legal cases in court
CE means Current Era so I believe it would be A or B.
The Sons of Liberty were a grassroots group of instigators and provocateurs in colonial America who used an extreme form of civil disobedience—threats, and in some cases actual violence—to intimidate loyalists and outrage the British government. The goal of the radicals was to push moderate colonial leaders into a confrontation with the Crown.