C
The state is in charge of the educational system
The first is the best option.
It is true that a lot of cultural aspects of Africa have been lost, most specifically, religion.
If we look at imperialism, its height came after the main period of African slave trade (second answer is false).
The tribal conflicts are still very ripe in Africa, and often they're fueled by the carefulness boundary drawing of countries in Africa- the third answer is false.
More self-rule is also false, if anything, imperialism brought less self-rule
No changes, cuz they do good, they just get picked on because one guy does one bad thing even though one guy had drugs in him, and the other was reaching for a knife and was not responsive, but whatever.