The answer is C. Bhutan, Laos.
I really hope this answer is helpful! :)
I would say a natural disaster like a forest fire that could kill trees that are their homes. A forest fire could kill the trees and also the cones they eat for food and thus destroy their habitat and also a source of food and the branches they use to travel from one tree to another in the upper stories of the forest.
Settlers who grew just enough crops to support likely lived in the North.
Hope this Helps!
Russia. It is the largest country in the world. 90% of Russia is in Asia and the rest in Europe.
