Answer:
-technological advance like Steam powered riverboats
-means to control disease
-they were no longer confined to the coast
Answer:
Creating local government
The answer for this question is c
The historic moment created the first transcontinental railroad, Enabling travelers to go from coast to coast in a weeks time making it markedly easier to travel west in search of land for settlement. Desiring Quick payment of loans rolls encourage the service to grow and sell cash crops