The appropriate response is Nicolaus Copernicus. The heliocentric model says that the sun is at the focal point of the universe, and the absence of the move of stars intended to them that they were moving around a similar thing the Earth was, or the Sun.
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 was the Gold Rush. The California Gold Rush began in 1848 and drew thousands of people who were looking to make a fortune.