Concept:British colonial administrative reforms led to the division of Southern Nigeria into two separate provinces.
Explanation:The division of Southern Nigeria into Eastern and Western provinces took place in 1939.
This action was carried out by the British colonial government.
Governor Sir Bernard Bourdillon introduced the administrative reform.
The main aim was to improve governance and administrative efficiency.
Before this time, Southern Nigeria operated as one single administrative unit.
The reform created two distinct provincial administrations.
Each province was placed under its own administrative headquarters.
The change made the management of the large territory much easier.
It also prepared the ground for future regional arrangements in Nigeria.
Answer:The correct option is C. 1939.