The correct answer is - B) providing resources to modernize Tibet's economy and society in general.
China has been trying to integrate Tibet into the Chinese society, in one way or another, since it incorporated it in its territory. Since Tibet is on the fa western part of the country and pretty isolated of the developed part, the Chinese government made a plan to bring in the modern society in Tibet instead.
The Chinese government invested heavily in Tibet, and improved the infrastructure and the living conditions, make it in the shape of the the developed ares in the east. Also, lot of Han Chinese were sponsored by the government to move to Tibet, so the Tibetans became a minority in Tibet very quickly. It is a process that is still going on, and it seems that manages to properly perform a cultural assimilation of the Tibetans.
It would be an estuary. I attached a picture of one if you'd like to see what it looks like :)
Yes. A lot of early settlements were built near mountains with fertile soil because the mountajn 's fertile soil proved to be valuable farm land
