A. natural resources
B. government proceeds
C. black South African slaves
D. basic social infrastructures

Correct Answer: Option C

C. black South African slaves

Explanation

Black South African slaves is the correct answer. Apartheid system was rooted in the enslavement of the black South Africans as instruments to build up South Africa. This was in the 17th Century. At the end of slave trade in 1863, the base was shifted to the discovery of diamonds and gold.

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