Question

PLEASE HELP MEEEE PLEEEEEAAAAAAAAASSSEEE

A political effect of the Lewis and Clark Expedition was the


founding of St. Louis as a gateway to the West.

expansion of the nation east of the Mississippi.

beginning of trade with American Indian tribes in the West.

building of large cities in the Pacific Northwest.

Answer 1

It’s the third one beginning of trade with American Indian tribes in the west(mark me brailiest)