The correct answer is the following: option C. The cotton gin helped impact the growth and harvesting of cotton, by separating the seeds from the cotton plants. Invented in 1793 by Eli Whitney in the United States, the cotton gin was a machine created to clean the cotton from its seeds. Its designed came as a result of the increase of the demand for American cotton. By using the cotton gin, producers were accelerating the harvesting of cotton, as separating the seeds from the plan manually was an activity that took too much time.