Concept:Revenue allocation is the sharing of national income among the federal, state, and local governments in Nigeria.
Explanation:Nigerian federalism has faced many challenges since independence.
Poverty, health care delivery, and education are social problems, not structural political disputes.
The most persistent political conflict is revenue allocation.
The discovery of oil increased the amount of money shared among the three tiers of government.
Every region wants a larger share of national revenue.
Over the years, several commissions were set up to find an acceptable sharing formula.
Between 1946 and 1999, about ten such commissions were appointed.
Despite their efforts, the dispute over revenue sharing has remained unresolved.
This makes revenue allocation the major contentious issue in Nigerian federalism.
Answer:D. revenue allocation