Which function of money removes the need for a double coincidence of wants in trade?

1. Under barter, a trade needs both parties to want what the other has. 2. Money is accepted by everyone, so a seller takes money rather than goods. 3. That role is money acting as a **medium of exchange**. 4. Unit of account is about measuring value, and store of value is about carrying wealth forward, so neither solves the matching problem. _Source: syllabus Introductory Macroeconomics, Ch 3 "Money and Banking", section 3.1 FUNCTIONS OF MONEY_