The correct answer is B) Britain imported raw materials from the colonies and sold its finished products to the colonies.
Britain prospered by controlling the trade of the American colonies in that Britain imported raw materials from the colonies and sold its finished products to the colonies.
The British colonies grew crash crops that later were exported to Britain. They processed them and were sold to the American Colonies. The Americas had many raw materials and natural resources and Britain wanted to profit from them. For instance, the case of tobacco in the Virginia plantations. Tobacco in the Americas was more gray and bitter than tobacco in Europe and had great success in Europe.
Another way to profit from the colonies was the heavy taxation that the British crown imposed to the colonies such as the Sugar Act, the Stamp Act, or the Tea Act.