An effect of the lewis and clark expedition on us business was that it
a-found a location for a national bank.
b-located important routes for trade and travel.
c-brought back specimens of natural discoveries.
d-found a water route across the continent.

B-located important routes for trade and travel.

Lewis and Clark explored the newly acquired Louisiana Territory bringing back information on the land including their journals and maps.

The mapping provided by Lewis and Clark allowed the use to create new trade routes. The routes would be used for those wanting to travel west and set up new farm land and settlements. The two men also created relationships with native tribes which would aid in creating settlements and trade agreements going forward.