57 What does the author mean by “it’s a two－way street’ in paragraph 10？ A. China and Indi

57 What does the author mean by “it’s a two-way street’ in paragraph 10？

A. China and India have different traffic rules

B. Tea trade works wonders in both India and China

C. Chinese products are popular in both China and India,

D. The exchanges between India and China benefit both

请帮忙给出正确答案和分析，谢谢！