Concept:The coalition between the Action Group (A.G.) and the National Council of Nigerian Citizens (N.C.N.C.) was formed due to political alliances and electoral strategies, not because of the earlier Kano riot.
Explanation:The A.G. and N.C.N.C. came together mainly to challenge the Northern People's Congress (N.P.C.) in the 1964 federal election.
Awolowo's faction within the A.G. wanted to remove the N.P.C. from power, while Akintola's faction preferred cooperation with it.
Akintola's breakaway group later formed the United People's Party (U.P.P.), which contributed to the political realignment.
These factors directly influenced the coalition arrangement.
However, the Kano riot of 1953 happened long before this coalition and was not among the reasons for it.
Answer:A. The Kano riot of 1953