Explanation:

- Quantity of Money: Refers to the total money supply in an economy at a specific point in time. It is considered a stock because it represents a fixed amount at a given moment.

- Wealth: Represents the total value of all assets owned by an individual or entity at a certain time. It is a stock because it can be measured at a specific point in time.

- Quantity of wheat stored in a warehouse: Represents the physical stock of wheat available at a given moment. It is also considered a stock because its quantity is fixed at a particular time.

- All the above: All these options represent stock, as they can be quantified at a particular time.

Option:4 - All the above is correct.

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