The correct answer is A. The factor that most contributed to the decline in cotton production in Georgia was the boll weevil.
The region of origin of the boll weevil is near the Rio Grande near Brownsville,Texas.
In 1904, the insect was reported in Louisiana and crossed the Mississippi River in 1908. It reached Georgia by 1912, becoming the most destructive pest of North America. In the mid-1920s, it affected all areas of cotton production in the United States.
In mid-1921, the weevil reached South Carolina. During the 1920s, the insect helped to impoverish farmers in the southern United States, already affected by the Great Depression.
