According to Goldkorn, the Chinese government is limiting Western influence primarily to

maintain its hold on Chinese citizens.
slow down the process of globalization.
control the flow of foreign trade in China.
stop the Chinese culture from being erased.

maintain its hold on Chinese citizens.

Explanation:

Just answered on edge

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.