Which sentence can be added to the beginning of the paragraph? A.
A key concept of Confucianism is that a person must govern oneself in order to govern others.
B.
Foreigners from Turkey, India, Iran, Japan, Korea, and Malaysia lived in the Tang capital city and brought their cultures with them.
C.
For example, a paper money system and woodblock printing were all innovations attributed to either the Tang or Song dynasties.
D.
The Tang and Song dynasties changed and improved many aspects of Chinese trade and culture.