The correct response is:
- International organizations, such as the UN and the Commonwealth of Nations, placed pressure on the government to end apartheid. They condemned apartheid and the UN placed embargos against selling weapons to South Africa. South Africa eventually gave in, ending apartheid in order to remain part of these organizations.
This response accurately reflects the multifaceted international reaction to apartheid, highlighting the roles of both the UN and the Commonwealth of Nations in opposing the system of apartheid and the measures taken to apply pressure on the South African government.