The map shows a population growth rate of over 2% for Sub-Saharan Africa. What is the reason for the zero growth rate in South Africa?
(A) Improved level of education
(B) High standard of living
(C) HIV pandemic
(D) Climate change
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統計: A(0), B(2), C(7), D(0), E(0) #2135733
統計: A(0), B(2), C(7), D(0), E(0) #2135733