the sons of liberty, a group that vocally rebelled against the british prior to the american revolution, would be most supported by what group?

Patriots, is the right answer.

Explanation:

Before 1775. many of the Patriots actively participated in the Sons of Liberty. The  Sons of Liberty was an association developed to preserve the rights of the colonists from encroachment by the British administration. In the years before the American Revolution took place the Sons of Liberty were assisted by the Patriots in their fight against the British rule.

what is the other part to the question

i would say b. research typically uses a variety of sources