Concept:The National Congress of British West Africa (NCBWA) pressed the British colonial authorities for political reforms, particularly the demand for elected African representatives in the legislative councils.
Explanation:The NCBWA, formed in 1920, was the first inter-territorial political organisation in British West Africa.
It strongly advocated the elective principle so that Africans could choose their own representatives in government.
These persistent demands influenced constitutional changes in the colonies.
As a direct result, the elective principle was introduced in the Clifford Constitution of 1922 in Nigeria.
It was also adopted later in the Guggisberg Constitution of 1925 in the Gold Coast (now Ghana).
Thus, the high point of NCBWA activities was the acceptance of the elective principle by the British colonial government.
This marked a significant step toward African participation in governance.
Answer:B. introduction of the elective principle