Explanation:

- Option 2: Money supply

- The total stock of money in circulation among the public at a particular point in time is called money supply.

- It includes all coins, currency, and demand deposits held by the public and other liquid assets.

- Option 1: Money order

- A money order is a prepaid financial instrument used to pay a specific amount of money to a designated recipient.

- Option 3: Short money

- Short money generally refers to funds or investments that are intended for short-term financial needs or strategies, but it's not a standard term in macroeconomics for total money in circulation.

- Option 4: Money laundering

- Money laundering is an illegal process of making large amounts of money generated by a criminal activity appear to have come from a legitimate source.