B. It allowed for expansion and modernization of the economy.
Advances in transportation, such as the development of railroads and highways, played a significant role in the expansion and modernization of Georgia's economy. The state's agricultural and manufacturing industries were able to transport goods more efficiently, which led to increased trade and economic growth. The transportation infrastructure also made it easier for people to travel within the state and to other parts of the country, which helped to promote tourism and other industries. Additionally, the construction of new highways and interstates helped to improve access to rural areas and promote urbanization, which led to the growth of cities and the development of new industries.