Answer:
Taxation
Step-by-step explanation:
Britain had a lot of debt from the French and Indian wars, so they relied on heavy taxation on the colonies to pay off their debt. They were taxing the colonies without the colonies having any say in the matter, because they didn't have representation in Parliament. Stamp Act of 1765, the Townshend Acts of 1767 and the Tea Act of 1773, were the major taxation laws.