C. Nationalism convinced the people of Europe that their own nation could take on any military threat.
Tutu mentions all of the following grievances of black South Africans except impossibility of blacks' obtaining jobs as diamond miners. The correct option among all the options that are given in the question is the last option or option "d". The other options given in the question were mentioned by Tutu.
They were not allowed to leave and so they had to stay
