Concept:Oba Ewuare of Benin is best known for his political and urban transformation of Benin City.
Explanation:Before his reign, Benin City was mainly a military fortress built by the Ogisos.
Oba Ewuare transformed it into a powerful city-state.
He strengthened the city with protective moats and walls.
Under him, Benin became a well-organized capital and entered its first golden age.
Therefore, he is not credited with opposing British imperialism, managing a trade monopoly, or succeeding Ovonramwen.
Answer:D. transformed Benin city into a city-state