Respuesta :
It should be noted that the change in the West that brought about by railroad expansion is The mining and cattle ranching industries increased in the West.
What is railroad expansion all about?
This is the improvement on the rail system in the west which occurred as a result of mining and cattle ranching industries.
This expansion occurred as a result of the increase in demand in transportation of both man animals for farmers.
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Answer: B- The mining and cattle ranching industries increased in the West.
Explanation: