Concept:The Itsekiri kingdom was founded by a Benin prince who migrated to the Niger Delta.Explanation:Prince Iginua, also known as Ginuwa, was a son of Oba Olua of Benin.He left the Benin Kingdom after a dispute with his father.He settled with his followers in the Niger Delta area.There he founded the Itsekiri kingdom and became its first ruler.Thus, the founder of the Itsekiri kingdom was Iginua, not Oba Olua.Answer:A. Iginua