Which western river were important for trasporting goods. loisianana purchase

The Mississippi River was a highway that hundreds of settlers used to transport people, products, and goods. Even the merchants who used the river were not worried about the land on the other side of the river. In the beginning Spain owned the property west of the Mississippi.

i thinl it is the 1st answer

the answer is c my brotha. c.   formed an alliance with the soviet union.