The Chinese had a virtual monopoly on which of the following for many, many years?

Question

Quizplus · Accepted Answer

For many years, the Chinese enjoyed a virtual monopoly on silk.
Key Takeaway: Silk has always been one of China's most profitable commodities. The production of silk is highly complicated and for many centuries, the Chinese did not want to share their silk-making secrets with other nations. Because of this, China enjoyed a virtual monopoly on silk for a very long time.

The Chinese Had a Virtual Monopoly on Which of the Following