Answer:
Option D, it made cotton the dominant crop, is the right answer.
Explanation:
The invention of Cotton Gin was one of the most significant inventions of the Industrial Revolution. It gave a boost to the production of cotton to both the economies of the North and the South. In the South, the Cotton Gin enabled to grow short thread varieties of cotton. With the production the plantation owners of South became rich. Very soon the economy of the South became dependent on cotton. Therefore, it may be said that cotton became the dominant crop of the South.
