What role did trading posts play in the Pacific Northwest territory?

(1 point)
Responses

Trading posts were military forts to fight against the other country.
Trading posts were military forts to fight against the other country.

Trading posts were considered official residences of the foreign power.
Trading posts were considered official residences of the foreign power.

Trading posts attracted settlers from both the United States and Great Britain.
Trading posts attracted settlers from both the United States and Great Britain.

Trading posts housed trappers who claimed the territory.

Trading posts attracted settlers from both the United States and Great Britain.