Committees of Correspondence to respond to growing disputes.
Explanation:
The Boston Massacre that happened on March 5, 1770, led to British soldiers shotting and killing several American colonialists people due to the harassment by a mob in Boston city.this event was seen as abuse of power by the British military and committees of Correspondence were formed to respond to growing disputes and was enacted on November 4th, 1772.
The American public was already shocked and horrified from the sinking of the Lusitania and the constant attacks on their ships, The Zimmerman note was the last straw since it finally turned the publics opinions from anti-war to pro-war.