Final answer:
The core injustice of apartheid lies in a) The unequal treatment of races. It was a system that enforced racial segregation and discrimination, leading to widespread human rights abuses and socioeconomic disparities among nonwhite South Africans. The regime also exploited nonwhite labor while restricting their freedoms and participation in governance.
Step-by-step explanation:
The fundamentally unfair aspect of apartheid that many people recognize is a) The unequal treatment of races. This policy legalized and institutionalized racism, creating a social inequality that led to South Africa's international condemnation. Under apartheid, the South African government designated separate homelands for different ethnic groups, forcibly removing people based on their race or ethnicity and placing them in undesirable territories called 'homelands'.
Legislation not only restricted nonwhite South Africans to these areas but also prohibited them from participating in the nation's government while simultaneously exploiting their labor. Additionally, people of African descent faced travel restrictions through the passbook system, which severely limited their access to employment and movement. This regime served to perpetuate socioeconomic disparities, notably benefiting a wealthier upper class while millions of poor ethnic minorities lived in substandard conditions.
Thus, the inherent injustice of apartheid resided in its deep-rooted racial discrimination and its pervasive impact on every aspect of the lives of South Africans who were classified as nonwhite.