Answer:
Correct answer is option C. Caravans .
Step-by-step explanation:
Option A is not correct as term Hindus is used to describe the follower of Hinduism, a religion that has most of its followers in India.
Option B is not correct as it probably refers artisans who lived in China during the reign of Han dynasty.
Option C is correct as it refers to group people that traveled along certain trade routes to deliver certain products, and the most famous among those routes was the Silk Road.