The correct answer would be D) local authorities' refusal to integrate Central High School. I say this because it is the only logical answer.
The answer is D. Principalities were small territories that were run by Russian rulers.
This due because they population was very small, and it still hasn't reached by the mongol Empire But they were very close with Russian Territories
It shows them that exact year in which certain things happen
The Anasazi people lived in the southwestern region of what is now the United States.