The correct answer is B.
The 3 biggest airports in South Africa are in Durban, Cape Town and Johannesburg, but it is Johannesburg that is the premier one.
The systems of forced labor in Latin America imposed by European powers were results for economic/political expansion bc
-Spanish found silver in certain colonies and imposed the Mita system to extract it
------This gave the spanish economic superiority bc they sold silver in Chinese markets bc of a new law that made chinese taxes had to be paid in silver
-Sugar was a cash crop and the climate in Latin America was perfect to mass produce it using cheap labor systems such as the Mita
Basically they needed cheap labor to mass produce expensive goods to make profit
A. Vargas returned with settlers
Explanation:
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They did not want to lose South Vietnam to Communism.