Answer:
they had not yet developed a system of money based on coins
Explanation:
D
I believe the answer is c
Answer: Different states would bring there own items, decorations
Explanation:
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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Because they were just now looking in the anatomy of the human body and the first vaccines were made
