Answer:
The Boston Port Act closed the port of Boston so tightly that the colonists could not bring hay from Charlestown to give to their starving horses.
Step-by-step explanation:
The British parliament believed that the colonists of Massachusetts could be punished without the other colonies objecting. They believed that the harsh punishment of the whole Massachusetts colony would panic the other American colonies into conceding the authority of Parliament over their elected assemblies. Instead the Boston Port Act ignited all of the colonies into anti-British actions.