a. the Grand Dragon of the Ku Klux Klan
The 100 Percent American group is a nativist group who promoted the idea of what it means to be an American. They believed that white people with western European origins (original settlers) were the rightful Americans.
Nativist groups were against immigrants, blacks, Jews, Catholics, and other minority groups. They used methods of intimidation and violence in an effort to limit the power and say of these groups. The KKK is an example of a group that organized around the ideas of nativism and promoted what they believed to be the traits of "true" Americans.
All three governments wanted to be superior and they did act that way. But soon, it caused many issues. This is probably not the best answer but I hope it kind of helps :)
The main reason why the North needed to maintain control of the border states during the Civil War was because "(B) President Lincoln needed the region’s political support to maintain <span>the presidency," since these states remained loyal to the Union but were not necessarily "free states". </span>
<span>D. obeying national leaders without question</span>