Concept:Federalism requires mechanisms to ensure fair representation and prevent regional domination.
Explanation:The Federal Character Commission is a key institution established to promote fairness in Nigeria's federal system.
Its main duty is to ensure that appointments into public offices and the distribution of resources reflect Nigeria's diverse population.
This helps prevent any single ethnic group or region from dominating federal institutions.
By doing so, it strengthens unity, reduces suspicion, and promotes stability in the federation.
The National Judicial Council, National Assembly Commission, and National Defence Council have different functions related to the judiciary, legislature, and military, not federal character balance.
Answer:A. Federal Character Commission.