What led to the influx of prospectors into north Georgia in the late 1829?

The correct choice highlights the significant historical event known as the gold rush, which began in north Georgia around late 1829. This period was marked by the discovery of gold in the region, particularly in places like Dahlonega. The news of gold discoveries spread rapidly, attracting prospectors and fortune seekers from nearby states and farther afield in search of wealth and opportunity. This massive influx of individuals seeking gold drastically altered the population dynamics and economic landscape of north Georgia.

While other factors, such as the building of railroads, the displacement of Native Americans, and the development of new cotton fields, contributed to the region's development, they did not directly trigger the immediate rush of prospectors during that specific time. The gold rush was the pivotal event that directly led to the movement of thousands into the area, profoundly impacting Georgia's history.