Answer:
B. No written language
Explanation:
The very definition of prehistoric refers to the lack of written records or documents.
Prehistoric societies used tools and migrated often, and the understanding of science is too recent to be relevant for the question.
Despite the lack of a written language, we can learn about prehistoric society, precisely because of their tools and their migration patterns. Where to and when did they move? What kind of animals did they hunt? Their social structure and ideas of death, all that is there in their tools and remains. But without a written language, the knowledge we have is only approximate.
The main reason why ethnic tensions became such a severe problem in the Soviet Union and Yugoslavia is because the the USSR was such a vast territory that it forced many people who had not gotten along for centuries under the same political umbrella.
Russia was a "world" apart from western Europe in the 17th and 18th centuries, mostly because they were so sheltered from the technological, economic, religious, and cultural advancements of the area. There answer is therefore would be A. "Most Russians of all classes
<span> were Orthodox Christians, not Catholics or Protestants.</span>"
