The correct answer to this open question is the following.
Although the question does not include options, we can answer the following.
In the Stamp Act of 1765, the British government stated in no uncertain terms that Parliament's power was supreme and any laws the colonies may have passed to govern and tax themselves were null and void if they ran counter to parliamentary law.
The intention was clear, the English monarchy ordered the British Parliament to regulate the westward expansion and the trade between the 13 colonies in North America. That was the purpose of the Stamp Act of 1765. It was heavy taxation that the British government imposed in every single printed paper in the colonies. This, of course, infuriated the American colonists because they had to pay taxes and they did not have any voice or representation in the British Parliament. This taxation, among others, was one of the primary causes of the American Revolutionary War.