Answer:
economic sanction
Step-by-step explanation:
In 1987, the international community decided to impose strict economic sanctions on the Republic of South Africa in order to force it to end the apartheid. The sanction was directly imposed on the oil, which was a big blow for the economy of the country as it provided large portion of the income. This economic sanction resulted in stopping of the apartheid, thus it had its purpose accomplished, leading to a much more equal society, opportunities for everyone, education for everyone, and ending the segregation in this nation.