The All Progressives Congress (APC) is the result of a coalition of the following parties except the___________

The All Progressives Congress (APC) is the result of a merger of four opposition parties in Nigeria. These parties are the All Nigeria Peoples Party (ANPP), the Action Congress of Nigeria (ACN), the Congress for Progressive Change (CPC), and a faction of the All Progressives Grand Alliance (APGA). Therefore, the answer to the question is "United Progressive Grand Alliance (UPGA)" because UPGA is not one of the political parties that merged to form the APC. The APC was formed in 2013 as a response to the ruling People's Democratic Party (PDP) which had been in power since 1999. The merger was aimed at creating a formidable opposition to the PDP in the 2015 general elections, which the APC won, leading to the inauguration of President Muhammadu Buhari as the first opposition candidate to defeat a sitting president in Nigeria's history.