Select the correct answer from each drop-down menu. is a characteristic of an economy in which people depend on one another for of goods and services.

Barter system

Explanation:

In the ancient world when money or currency was not invented, people used to exchange goods and services in return of some other goods or services of their choice.

This is one of the old method of exchange. It is one of the old century method  and is used by people when no coins or money was there. It is that characteristics of the economy where people rely on others for goods and services.

the answer is use of support  

we need the answer choices to answer the question