What did the Louisiana Purchase do? ASWER FAST IF CORRECT WILL MARK BRAINLIEST PLS GO GO GO GO GO GO GO OG GO GOG G GOG GO GO GO GO GO GO GO GO GO GO GO GO GO GO GO

It expanded the frontier area to the Pacific Ocean.
It added land to the frontier west of the Mississippi River.
It limited existing trade networks with the Indigenous People.
It forced the Indigenous People to leave the western United States.