These are the answers for the Continuing Conflicts Quick Check:

1)C- Different regions declaring independence
2)A- Nelson Mandela
3)B- They wanted more political and economic power
4)Drag the Description
Yugoslavia: Experienced extensive ethnic conflict the led to its break up.
Chechnya: Has attempted to separate from Russia since the fall of the Soviet Union.
Nigeria: Has experienced many military takeovers since independence.
Sudan: Has a government controlled by Arab Muslims but population mostly ethnically African.
These are 100% correct.