Answer:
The correct answer is option C.
Explanation:
At the early stages of development, the economies were not using the currency for the exchange of goods and services. Barter system existed in the early stages of development. In this system, goods were used as a medium of exchange to get other goods and services.
This system had a number of drawbacks. Double of coincidence was necessary for transactions to take place. High cost was associated with transactions. This led to inefficiency in the economy.