HSA 2006 Government Item 28

In the 1980s, the United States, some European countries, and the United Nations banned the trade of certain goods and services to South Africa. The policy was in response to South African laws which enforced racial segregation.

Which of these best describes this action toward South Africa?

1. the use of diplomacy to gain military strength
2. the use of free trade to build military alliances
3. the use of humanitarian aid to win political support
4. the use of economic sanctions to bring about social change