1. It required the colonists to pay a tax, represented by a stamp, on various papers, documents, and playing cards. Although the Stamp Act occurred eleven years before the Declaration of Independence, it defined the central issue that provoked the American Revolution: no taxation without representation.
2.The Stamp Act, however, was a direct tax on the colonists and led to an uproar in America over an issue that was to be a major cause of the Revolution: taxation without representation. The colonists greeted the arrival of the stamps with violence and economic retaliation.
Since the population of the cities increased with more factories being built, A seems to be the best choice: More people moved to the city in order to work in the factories.