Which statement best describes Africa immediately after world war two

Many African nations demanded that colonial governments grant them their independence. After the end of WW II most of the African countries that still hadn't gained independence started demanding it from their colonial governments. This is was due to the fact that most of the colonial countries were significantly weakened and that the African countries were reflecting on the other countries around the world that gained independence. Not surprisingly, most of them did gained independence without any major problems because the colonial countries of Europe were all on the verge of economic collapse and were not able to sustain their colonies anymore.

the enslaved people onboard suffered from illness with some frequency

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.