I think the answer would be D
The main objection studied in political schools:
Globalization causes new global problems which lead to a situation where actions in one country affect another country, or even the rest of the world (as an example - the 2008 economical crisis). Globalization comes with an interdependence of the problems that happen around the world and requires greater collaboration between countries.
The correct answer is : China had been closed to most foreigners.
Deng opened China to foreign investment, the global market and limited private competition. He is credited with the development of China in one of the fastest growing economies in the world for more than 30 years and the rising standard of living of hundreds of millions of Chinese.