What group of students was famous for challenging school segregation in the deep South?

What group of students was famous for challenging school segregation in the deep South?

A Nation of Islam
B Black Panthers
C Little Rock Nine

Federal troops and the National Guard were called in to intervene on behalf of the nine Black students, who were threatened with violence for the simple act of attending a newly integrated public school in Little Rock, Arkansas, in 1957.

The correct answer is Little Rock Nine.