According to the Text, the People's Republic of China Moved

According to the text, the People's Republic of China moved to institutionalize traditional Chinese medicine through a number of different strategies, including the export of the practice to other countries. Why was this done?

A) to improve the balance-of-trade situation in post-Mao China
B) to develop better teaching and educational methods for Chinese students of medicine
C) to broaden the experience of the "barefoot doctors" in China
D) to develop ties of solidarity with other developing nations