The railroad opened new markets for agricultural products from the Great Plains is the result of the construction of the transcontinental railroad.
Option B
Step-by-step explanation:
Though it had a lot of positive impacts by increasing the trade reducing the time to travel and made the expansion of market it also had certain negative impacts due to construction of railroad a lot of Native Americans were dislocated and the natural resources of the area were also destroyed due to its expansion.
However, as it is told, everything have their own advantages ans disadvantages. And to gain something, we need to lose something as well. What matters is how the after effects will be. By seeing on the long run, this could also combine the country and heal the effects of the civil war.