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.
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Answer:
It provided the needed structure for the survival of the nation between 1781 and 1789.
Explanation:
After the American Revolution, that official document named the "Articles of Confederation" was drafted to reflect the idea and principles of the American Revolution.
There was need for a document that will provide a structure of survival while the American People figured out the best way to have and run an effective national government.
If only one company provides a service it can monopolize that sector and cause price gouging. If several companies provide a service and those companies must be competitive with each other to attract business/customers.