The correct answer is A. The author anticipate and refute the argument that if the American colonists were unhappy with the king, they should have appealed to Parliament.
He does so by describing all the situations of injustice suffered by the settlers, and the way in which they tried to make the British metropolis aware of these situations, without being heard.
In this way, it demolishes in advance the argument that the settlers should have appealed to the British Parliament, since it exposes the times that the settlers did it without obtaining solutions.