Question

how did the international community respond to south africas policies in the 1980s?
by refusing to buy south african goods
by setting up a blockade around the country
by threatening to declare war on south africa
by negotiating treaties between different groups

Explanation:

In the 1980s, the international community responded to South Africa's apartheid policies through economic sanctions. One common form was a boycott of South African goods. Blockades and war threats were not typical responses. Negotiating treaties between different groups within South Africa was more of an internal or later - stage (post - apartheid negotiation) effort rather than an international community response in the 1980s.

Answer:

by refusing to buy South African goods