Concept:Federalism means the division of powers between a central government and component regional governments.
Explanation:The Lyttleton Constitution of 1954 introduced a federal system of government in Nigeria.
It created three regions: the Northern Region, the Western Region, and the Eastern Region.
Each region had its own government with defined powers.
A central government was also established with authority over the whole country.
Powers such as defence, foreign affairs, and currency were assigned to the central government.
Other matters were reserved for the regional governments.
This clear division of powers between the centre and the regions is the foundation of federalism.
Hence, the Lyttleton Constitution of 1954 laid the foundation for federalism in Nigeria.
Answer:B. Lyttleton Constitution of 1954.