Question

Middle Eastern merchants and traders traveled on eastward trade routes carrying goods such as colored glass or white jade that were unavailable farther east. They would trade these goods for other goods. This process is an example of
A.
A trade barrier

B.
The democratic system

C.
The barter system

D.
Natural resources

Answer 1

I think it’s A but I’m not sure

Answer 2

I believe C because “A” would mean they stopped the trade