Answer:
John Ross
John Ross (Cherokee chief)
John Ross
Spouse(s) Quatie Brown Henley (born c. 1790–1839) Mary Brian Stapler (1826–1865)
Relations Great-granddaughter Mary G. Ross; Nephew William P. Ross
Children 7
Known for opposition to Treaty of New Echota; Trail of Tears; Union supporter during American Civil War
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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Fort Benning is an Army base situated on the Alabama-Georgia Border, which is right next to columbus.