Based on the article, you can reasonably infer that black South Africans who participate in land takeovers are doing so to .

build wealth for themselves.

Explanation:

Black South Africans suffered under apartheid for most of the 20th century, a system of strict racial segregation enforced by the government. One of South Africa's most murky unresolved problems is of land reform.  A latest government survey revealed that 70 percent of the land is held by white farmers. Resentment over that basic inequity is the reason that led to land confrontations such as the recent takeover of Stefan Smit's Stellenbosch farm. Black South Africans were desperately want to build some wealth for them.

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.