Which of the following regions was controlled almost completely by European imperial powers interested in exploiting its labor and natural resources during the 19th century? A. The Middle EastB. South AmericaC. East AsiaD. Central Africa

It was Central Africa because if you recall, Europeans and Westerners carved Africa, it being called "Scramble for Africa". They exploited the people there, also creating many tribal problems because tribes were mixed together when Africa was splitted apart by many countries.