The most significant factor that has resulted in an unequal society in Johannesburg, South Africa, is its __________.

A.
dependence on gold and diamond industries, goods that rise and fall rapidly in price
B.
history of segregation and apartheid
C.
climate, which is unsuitable for agriculture
D.
history of conflict with its neighbors

Please select the best answer from the choices provided.

B. history of segregation and apartheid