Question

how did fur traders help in the westward expansion of the united states?

the fur trade required a large work force to be profitable.

the trails they established to move their furs east were later used by pioneers.

they established forts along the oregon trail that protected settlers moving west.

they worked as scouts, bringing settlers out to the pacific northwest.

Explanation:

Fur traders blazed trails for moving furs east. These trails later served as routes for pioneers during west - ward expansion. The other options are not the main ways fur traders contributed to westward expansion.

Answer:

The trails they established to move their furs east were later used by pioneers.