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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The Stone Age is divided in three distinct periods: the Paleolithic Period or Old Stone Age (30,000 BCE–10,000 BCE), the Mesolithic Period or Middle Stone Age (10,000 BCE–8,000 BCE), and the Neolithic Period or New Stone Age (8,000 BCE–3,000 BCE).
Answer:
D- Monastery
Explanation:
Depending on what religion we are talking about, it can be monastery, or a convent, but convents are almost always nuns, same with an abbey, that's for nuns as well, so the most reasonable answer is D.