Concept:The United Progressive Grand Alliance was an electoral coalition of opposition parties in Nigeria.
Explanation:Before the
1964 federal election, several Nigerian parties united to challenge the ruling alliance.
The grouping brought together the United Middle Belt Congress, Action Group, Northern Elements Progressive Union, and National Council of Nigerian Citizens.
Their combined acronyms are UMBC, AG, NEPU, and NCNC respectively.
This set of parties matches the alliance listed in option C.
Answer:C. UMBC, AG, NEPU and NCNC.