The answer would be ‘Archaeologists’ because they are always looking for clues.
Are you asking for some examples of challenging the color barriers? if so then some examples are the Little Rock Nine trying to desegregate schools, and the Greensboro Four who sat at a counter in a diner marked only for whites and they were harassed but they were always polite.
Answer:
The government was powerless and society could collapse.
Answer:
A. Tobacco growing