A) Pressured German leaders to surrender.
D or A is the answer. I least I narrowed it down.
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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Brown v Board of Education. This was the reason segregation was against the law
The Norman Invasion began in the year 1066.
