Answer:
the spread of islam and fighting between people for power to rule
The history of Russia has repeatedly been a nearly sad and tumultuous one elaborated with wars, power struggles, and abrupt changes. The mere shock of the violence and size of the Mongol army was devastating. The anxiety was just as political and economic in essence as it was social and spiritual.
Answer: Well the answer is D, you also said it, you're supposed to ask questions.
Explanation: That's what this website is.