Concept:Divide and rule was the colonial strategy of keeping local groups separate so they could not unite against European control.
Explanation:During the administration of Southern Nigeria, the Europeans did not use assimilation, persuasion, or trade concessions as their main policy.
Instead, they exploited the ethnic and cultural differences among the people.
By favouring one group and treating another harshly, they encouraged jealousy and rivalry.
This made it difficult for the people to come together and fight colonialism.
The policy also helped the Europeans to appoint loyal traditional leaders, while the rest of the people remained divided and weak.
Therefore, the central method used by Europeans to control Southern Nigeria was to create internal divisions.
Answer:B. Divide and Rule