What idea was central to the sub-saharan african social structure?

The correct answer is kinship system

The kin-based system was a dominant form of social organization in sub-Saharan Africa. Under this system, culturally defined relationships between individuals who were considered as related was the most important organizing principle in the society

answer; if congress didn't act on certain requests;

i believe that the answer to the question provided above is that the role of campaign committees is to act as a bridge between state and local campaigns.