Concept:The fall of the Benin Kingdom in 1897 was a turning point in British colonial expansion in the Nigerian area.
Explanation:Before 1897, the Benin Kingdom resisted British trade and political influence.
In 1897, a British punitive expedition captured Benin City.
This marked a significant milestone because it ended the kingdom's independence.
The British then annexed Benin and looted many valuable artifacts.
This event strengthened British control over southern Nigeria.
In comparison, the Sokoto Caliphate fell later, in 1903.
So the correct option is the Benin Kingdom in 1897.
Answer:A. Benin Kingdom in 1897