This is a little open for interpretation, but I would generally say that the best answer is that Josip Broz Tito was a very powerful leader, who kept the republics and the different groups together.
For example, we can see this from the fact that the first conflict happened in 1981: one year after his death ( a protest of Kosovans who demanded autonomy).
Special Purpose Districts are likely to most likely to regulate water systems, cemeteries, hospitals, sewers, fire protection services, and schools.
These special purpose districts are given power by state (local) law to meet the demands and/or needs of citizens.
Answer:
one of them would be the one that would probs be the best
