Answer:
C. Both Martin Luther King, Jr. and Nelson Mandel worked to improve civil rights in their respective countries.
Step-by-step explanation:
MLK and Nelson Mandela were both black activists that worked to improve Black lives in their respective countries.
Nelson Mandela: The Apartheid Union of South Africa.
MLK: USA
Both of those countries had segregation that segregated and seperated Blacks in unfair ways. These two Black activists worked to stop and end segregation.