Concept:The earliest administrative headquarters used by the British in Nigeria during colonial rule.
Explanation:Calabar served as the first colonial capital of Nigeria.
It was a major seaport and trade center, which made it attractive to British colonial administrators.
The town functioned as the capital of the Southern Nigeria Protectorate during the early colonial period.
In 1906, the British moved the colonial capital from Calabar to Lagos.
Lagos was preferred because it had a larger harbor and was becoming a stronger commercial hub.
Later, in 1914, Lagos remained the capital after the amalgamation of Northern and Southern Nigeria.
Calabar therefore holds the historical record as the original colonial capital before Lagos took over that role.
Answer:The first colonial capital of Nigeria was established in Calabar. The correct option is C.