Which significant challenge did Yugoslavia face in the years following the collapse of the Soviet Union?
A. Invasions led by other post-Soviet states in Eastern Europe and
Central Asia
O
B. Difficulty shifting from a free market economy to a command
economy
C. Ethnic hostilities that led to human rights abuses and campaigns
of genocide
D. Strikes by industrial workers seeking to improve their working
conditions

C. Ethnic hostilities that led to human rights abuses and campaigns

of genocide

Explanation:

Yugoslavia was a country which was divided into six different constituents along ethnic divides. This was established by Tito under communist rule.

However when he died the constituents fell apart and led to ethnic hostilities as some of the constituents wanted to create a country of their own which led to human right abuses and genocide cases as a result of them killing each other.