I think that the correct option among all is C. Spain forbade American trade in New Orleans.
Answer:
Explanation:
Gold rush and mining opportunities (silver in Nevada)
The opportunity to work in the cattle industry; to be a “cowboy”
Faster travel to the West by railroad; availability of supplies due to the railroad.
The opportunity to own land cheaply under the Homestead Act.
Answer:
I think it is either c or d
