An act to discontinue, in such manner, and for or such time as are therein mentioned, the landing and discharging, lading or shipping, of goods, wares, and merchandise, at the town, and within the harbor, of Boston, in the province of Massachusetts's Bay, in North America. —Boston Port Bill, 1774 What was the purpose of this act?
A. to discontinue the trade of merchandise within the city of Boston
B. to close Boston Harbor
C. to close ports throughout Massachusetts Bay
D. to decrease trade with the North American colonies