Although the financial burden imposed by the Stamp Act of 1765 was small, it antagonized and unified the colonies against the British government more so than had the Sugar Act of 1764 because
a) the Stamp Act directly affected a wider range of colonists and businesses.
b) the Sugar Act was more aggressively enforced by British authorities.
c) the Stamp Act targeted specific industries crucial to colonial economies.
d) the Sugar Act did not directly involve taxes on printed materials.