Can someone please help me
WILL MARK YOU BRAINLIEST!!!

Answer:
D
Explanation:
In 1867, Diamonds were discovered and Africans could not capitalize on it meaning that Europeans mined the diamonds.
Also before, they used Africans as slaves meaning which helps support the answer D
Many locations of Africa were controlled by European countries which is harming the Africans which means that Europeans were more powerful and was taken advantage of.
The evidence supports D because all the events exposited Africans.
Also using common sense, the other answers make no sense