Concept:The total stock of money available for use in an economy is known as the supply of money.
Explanation:The supply of money refers to the total amount of money in circulation in an economy at a given time.
It includes currency outside the banking system and money held in current accounts.
It represents the total stock of money available for spending and transactions.
Value of money means the purchasing power of money, not its total stock.
Demand for money means the amount of money people wish to hold, not the total available.
Therefore, the total stock of money available for use in an economy is best described as the supply of money.
Answer:A. supply of money