Who was most responsible for the boston tea party?

general washington
second continental congress
british government
unofficial colonial groups
french armed forces
british armed forces

Personally, because the sons of liberty did the Boston Tea Party which who Samuel Adams is the leader of, i think that he is most responsible. But I doubt it, I think that the British Parliament (Government) caused it because The Sons of Liberty was formed because of The Stamp Act which was started by the British Parliament itself. So i'm gonna put the decision on you whether its "Unofficial Colonial Groups" or "British Government".