Answer:
c. money is the medium of exchange.
Explanation:
For an exchange of goods and services to take place, each party must fully be contented that the products in exchange are the desired ones. No one should be forced to accept or reject the exchange offer. Indeed, it is a necessary condition each party has something that might be of value to the other party. However, when it comes to the medium of exchange, money is not the only medium of exchange, people can exchange goods directly without using money, and they can also use valued items such as gold and diamond. The correct answer is C.
