The words "nature", "well-off" and "great harmony" were first seen in ()

A. Daxue, Shangshu and The Analects of Confucius

B. The golden mean, Zhouyi and Mencius

C. Laozi, the Book of Songs and the Book of Rites

D. Zhuangzi, Mandarin and Zuo Zhuan

Correct answer: C.