The passage was not provided. However, from the options provided, the best one that relates the Silk road to science is;
Alchemy is a scientific practice that developed along the Silk road. Alchemy is a pioneer of chemistry.
In this practice, base metals were converted to gold in the course of discovering an elixir for all diseases.
The alchemists sought to elongate life and most of their practices were based on speculations.
Conclusively, the Silk Road yielded Alchemy and Chemistry.
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