U.S. trade relations with China benefitted the Chinese who

A) welcomed U.S. ginseng.
B) adapted American customs.
C) allowed Americans free access to all Chinese ports.
D) benefitted from America's reluctance to expand to other Asian ports.

U.S. trade relations with China benefitted the Chinese in various ways, including the introduction of American products like ginseng, which was highly valued in China for its medicinal properties. This trade was mutually beneficial, but specifically, the Chinese welcomed U.S. ginseng, making it a significant aspect of the trade relations between the two countries.