A. All Nigeria Peoples Party (ANPP)
B. Action Congress of Nigeria (ACN)
C. United Progressive Grand Alliance (UPGA)
D. Congress for Progressive Change (CPC)
Correct Answer: Option C
C. United Progressive Grand Alliance (UPGA)
Explanation
APC is the result of the merger of the parties in options A, B, and D including a faction of the All Progressives Grand Alliance (APGA).