The building of the railroads affected the economy because They allowed people and goods to travel farther than before.
What was the effect of the railroads on the economy?
Before the railroads were built, there were many places that were inaccessible to common people because they were so far and so expensive to reach.
With the advent of the railroads, people could travel to those far areas fairly easily and at a cheaper rate and so they travelled farther and took over more areas which allowed them to set up economic activities that contributed to the economy.
In conclusion, option C is correct.
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