Answer: B. Railroads stimulated economic development
Step-by-step explanation:
The most significant effect of the growing railroad system was that the railroads stimulated economic development.
Thai brought about a society that was more interconnected as people could travel to other parts of the country. Counties were able to more easily work together due to the decreased travel time.
People got to their destinations faster and the railroad also helped in the delivery of goods as goods were delivered to customers and markets. Lastly, it also helped in facilitating international trade and economic development.