Concept:Inflation reduces the purchasing power of money over time.
Explanation:Money serves as a medium of exchange, unit of account, store of value, and standard of deferred payment.
During inflation, the general price level rises continuously.
As a result, the same amount of money buys fewer goods and services in the future.
Money kept or saved loses its real value.
Therefore, the function most directly affected is the store of value.
Answer:C. Store of value