Lately, the relationship between the United States and China is among the top ten most newsworthy topics due to their escalating trade war. However, the economic ______ between the two countr

Choose the option A, B, C, or D that best fits the sentence.

Lately, the relationship between the United States and China is among the top ten most newsworthy topics due to their escalating trade war. However, the economic ______ between the two countries has a cultural aspect.