Answer:
The answer is: D) the construction of railroad line
The railroad were integral to the growth of Georgia in 1820-1850s? in several way.
First of all, it allowed people to move easily, safely, and affordable travel, the construction of railroad line contributed and provided a large jobs opportunities, many foreigner migrated to create and seek for green pasture.construction of the railroad help to integrate different region of the nation economically.The construction help increase in labour power and promoted the basic market to increase in demand.The Georgia is know for the diverse architecture and cobblestone streets of its old town.