The Treaty of Paris was the meeting between the Americans, French, and British and it ended the war (Revolutionary War due to the battle/Surrender of Yorktown, 1881) and pronouncing the United States as independent, and allowing trades, and agreements between these people.
I believe the correct answer is C
The settlements served as 1. Trading posts 2. As central government centers
The settlements formed important commercial centers whereby the trading of good would be carried out. They were also used as administrative posts by the government to carry out its functions