Answer :
The correct answer is B. Cause: The cotton gin made it possible to harvest cotton more quickly, led to —> Southern farms produced more cotton.
The cause-effect relationship outlined here accurately depicts one significant change brought about by the Industrial Revolution. The invention of the cotton gin by Eli Whitney indeed revolutionized cotton production, enabling faster harvesting and processing. As a result, Southern farms could produce more cotton, leading to an increase in cotton production in the region.
This change had profound economic and social impacts, including the expansion of plantation agriculture and the reliance on enslaved labour to meet the growing demand for cotton in both domestic and international markets.