I think the answer is a. Punk rock
The correct answer is nativism.
Nativism is the idea of promoting interests of native inhabitants in detainment to those of immigrants. Examples of nativism includes specially supporting immigration-restriction measures and other prejudices.
Answer: They all were historical figures that had to do with progression and rights of people (Thomas Campbell sorta fits this actually but eh) anyways I am not sure what the actual questions (assuming it is multiple choice is but) YOU COULD SAY THEY WERE ENLIGHTENMENT THINKERS OR SOMETHING ALONG THE LINES OF THEY WERE PROGRESSIVE THINKERS FOR THEIR TIMES.
Explanation:
The Little Rock Nine was a group of nine African American students enrolled in Little Rock Central High School in 1957. Their enrollment was followed by the Little Rock Crisis, in which the students were initially prevented from entering the racially segregated school by Orval Faubus, the Governor of Arkansas. They then attended after the intervention of President Dwight D. Eisenhower.