A) Albert Fall.
He fell from his position.
-RaccAttacc
Because the Ku Klux Klan is an organization that doesn't tolerate black people and kills them for a living. And because of that it would be called the first homegrown terrorist organization.
The best answer would be: Ethnicity
The option that does not explain why a large part of the Great Plains became known as the "Dust Bowl" would be that "<span>The soil of the Great Plains was too rocky to support farming," since the soil was (usually) relatively fertile. </span>
Laws before the Civil War made it illegal to teach slaves how to read.
(Apex)