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Answer:
it is easy to write that essay
The Greeks introduced a system of political reforms that they called demokratia, or “rule by the people.” ... Although this Athenian democracy would survive for only two centuries, Cleisthenes' invention was one of ancient Greece's most enduring contributions to the modern world.
If there are 30 animals total and 2/3 of them were dogs then there is 10 cats
The country that faced a unity crisis due to having a large variety of ethnic groups was D.)Austria-Hungary.
<h3>Which groups were in Austria-Hungary?</h3>
Austria-Hungary was an empire that comprised of several ethnic groups including Serbs, Bosnians, Croats, Hungarians, and Austrians.
These groups wanted independence for themselves and this led to a lot of strife in the empire.
Find out more on Austria-Hungary at brainly.com/question/24213561
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