Concept:The Nigerian Council failed because it did not fairly represent the people it governed.
Explanation:The council was created in 1914 by Lord Lugard.
Its membership was dominated by official and European members.
Most African members were traditional rulers or nominated elites.
There were no elected African representatives.
As a result, the council could not express the interests of the majority of Nigerians.
This made it an unrepresentative body.
Its weak and advisory nature also reduced its effectiveness.
Thus, its lack of representation was a major defect that led to its replacement.
Answer:D. the council was unrepresentative.