Money makes the exchange of goods easier and Barter unnecessary.

• A. A Medium of Exchange
• B. A Measure of Value
• C. Storage of Wealth
• D. Double Coincidence of Wants

Answer: (A)

Money as a medium of exchange allows transactions to happen without the need for bartering. In a barter system you have to find someone who not only has what you want but also wants what you have, which is the double coincidence of wants. Money eliminates that hurdle by serving as a widely accepted intermediate asset you can sell for and then use to buy other goods and services. That makes exchanges faster and more flexible. While money can also function as a measure of value and as a store of wealth, the statement specifically highlights its role in enabling transactions, which is why this option fits best.