The correct answer is the following.
The production and consumption of tea in China is very important. Its part of the life of Chinese people. This activity goes back 3,000 years. The export of tea was very important for the Chinese economy. One of the results of the tea trade was the increase in the economy because of the exportation of tea. Exportations improved the economy of China. Tea was very demanded by other nations and China could satisfy that demand with the amount of tea it produced. Along with porcelain and silk, tea was a luxury product that other countries paid well. With the exportation of tea, China opened its doors to the outer world.