The map shows trade along the Silk Road. A map titled The Silk Road. A key shows different types of goods traded, including Textiles, Paper, Gems, Spices, Porcelain, Horses, Incense, Salt, Silver, Gold, and Silk.

Which conclusion about trade on the Silk Road can be drawn from the map?

The Silk Road was limited to trading in Southeast Asia.
Salt was exported from China to Egypt along the Silk Road.
Many goods other than silk were traded along the Silk Road.
India was not very heavily involved in the trade that passed along the Silk Road.

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