Concept:Nigeria lies in the western part of the African continent, which is known as West Africa.
Explanation:Africa is divided into broad regional groups: North, West, East, Central, and Southern Africa.
Nigeria is located along the Gulf of Guinea on the west coast of Africa.
It shares land borders with Benin, Niger, Chad, and Cameroon, all of which are positioned in or near West Africa.
Nigeria is also a member of the Economic Community of West African States (ECOWAS).
This confirms that Nigeria belongs to West Africa, not East, North, or South Africa.
Therefore, among the given options, the correct choice is option C.
Answer:C. west