The inflation rate is most commonly used to monitor short-run changes in economic activity.
A widespread increase in the costs of goods and services in an economy is referred to as inflation in economics. The buying power of money decreases when the overall price level rises, which is why inflation is often known as a rise in prices. Deflation is the antithesis of inflation and refers to a persistent drop in the overall level of prices for goods and services.
The majority of economists concur that sustained excessive expansion in the money supply is what causes high inflation and hyperinflation, both of which have profoundly disruptive impacts on the actual economy.
Hence the correction option is A.
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