The amount of a product that suppliers make available to the market at any given price in a given period of time

• A. Demand
• B. Subsidy
• C. Supply
• D. Equilibrium price

Answer: (C)

Supply is the quantity that producers are willing and able to offer for sale at a given price in a specific period. The statement describes exactly that: how much is made available to the market at that price. As price rises, producers typically want to supply more because it becomes more profitable, which is why the supply curve tends to slope upward and movement along it reflects changes in quantity supplied. Factors such as production costs, technology, prices of other goods, expectations, and the number of sellers can shift the entire supply curve, changing how much is supplied at every price. This is distinct from demand, which is the quantity buyers are willing to purchase at that price, and from the equilibrium price, which is the price where supply equals demand. Subventions can influence supply by lowering costs, but they are not the definition of supply itself.