C

The sustained and comprehensive increase in the general price level is the so-called inflation. As a monetary phenomenon, one of its causes is that too many bills are printed, causing the growth rate of money supply to be much higher than the growth rate of the entire output of the economy, leaving more money in the market supply and demand. Items with less chasing and bidding. In inflation, the purchasing power of money, or its exchange ratio for consumer goods, often manifests itself as a continuous decline, meaning that the same amount of the same goods now costs more money than before.