Concept:The 1951 Gold Coast general election was the first under the new constitution and was won by the party led by Kwame Nkrumah.Explanation:The Convention People's Party (CPP) won the 1951 general election in the Gold Coast.Kwame Nkrumah, the leader of the CPP, won the election even while in prison.This victory marked an important step toward Ghana's independence.Answer:C. Convention People's Party.