Answer:The correct answer is A. The event that most affected the independence movements in Africa following World War II was the formation of the United Nations.
The African independence movements began after the end of the Second World War and lasted until the mid-1970s; they were marked by bloody wars and pacifist movements, which led to the formation of new states in the former colonies.
The first country to free itself was Ghana (1957) and before 1965 almost all countries had been liberated. The last African colonies that were liberated in 1975 were Spanish Sahara, Angola and Mozambique.
The formation of the United Nations MOST affected the independence movements in Africa following World War II. Agreed upon in the waning months of the second global conflict in three decades, the U.N.’s charter stated that all colonial populations- not just countries in Europe- had the right to self determination. African peoples capitalize upon this and won independence in the following decades, either through peaceful or more-confrontational means.
