Answer:
c. Apartheid
Step-by-step explanation:
Apartheid was a policy and system of racial segregation and discrimination that was implemented in South Africa during the mid-20th century. It enforced the separation of different racial groups, primarily between Whites and non-Whites, including Black South Africans. Apartheid laws and policies were aimed at maintaining the dominance of the White minority population over the non-White majority and involved various forms of racial discrimination, including separate facilities, schools, and housing for different racial groups.
The African National Congress (option a) is a political organization that opposed apartheid and played a significant role in its eventual downfall. Afrikaans (option b) is one of the official languages of South Africa but is not a policy of segregation. The African Union (option d) is a continental organization, and its focus is broader than the specific policies of individual African countries.