Final answer:
The correct answer is option b. Abolitionists caused Georgians and other Southerners to fear the end of slavery by raising awareness and exacerbating tensions between the North and South.
Step-by-step explanation:
The group that caused Georgians and other Southerners to fear for the end of slavery were the abolitionists. This was a small, but very vocal group, that emerged in the early 19th century, aiming to bring an immediate end to slavery, which they saw as a national sin.
Leaders of the abolitionist movement, such as William Lloyd Garrison and the radical John Brown, played a significant role in raising public consciousness about the evils of slavery. Their actions and the growing antislavery sentiments contributed to the escalating tensions between the North and South, making Southerners, including Georgians, apprehensive about the future of slavery and their society.