Concept:Urbanization is highest in the region with the largest concentration of major cities and economic activities.
Explanation:The South-West region of Nigeria contains the country’s largest urban centers, such as Lagos, Ibadan, and Akure.
Lagos, in particular, is one of Africa’s most populous metropolitan areas and continues to attract heavy migration.
Most of Nigeria’s industries, seaports, and commercial hubs are located in the South-West, which increases its urban population.
In comparison, the North-Central, North-East, and South-South regions have fewer and smaller urban centers.
Answer:C. South/West