What led to the Battle of Bunker Hill? The Boston Massacre created tense unrest throughout the colonies. Members of the Boston militia dumped tea into Boston Harbor. Colonists began to launch protests against the Quartering Act. The British spotted fortifications by militiamen on Breed’s Hill.

an effort to save bullets, during the fighting at Breed's Hill, shouted to the colonists - "Don't fire until you see the whites of their eyes." ... What caused the colonists to retreat from Breed's Hill? They ran out of ammunition.

b.   jim crow laws were enacted in northern states.

the answer is prolly b