Why were merchants able to make a profit on the silk road

Merchants were able to make money by traveling further down the Silk Road. The farther away from home they went, the more there prices drove up because they did not have those things further East/West, and it became more of a risk when they traveled.

i think it would be c

Explanation:

that's a way of studying you look at them and study them wait a few hours to recall what they were to see if u got it right