Which best explains why the stamp act of 1765 significant

The regulation become the primary direct tax imposed on the yank colonists.

Explanation:

before it, people had what they known as salutary neglect, which intended that the colonies didn't certainly have to obey all laws and do the whole lot that the British parliament said, as long as they did not create any troubles. but, the stamp act changed that and Britain started pressuring them to pay taxes and comparable things.

The law was the first direct tax imposed on the American colonists.