Answer:
The correct answer is option c.
Explanation:
Inflation can be defined as a continuous and sustained increase in the general price level. There are several types of inflation such as cost-push and demand-pull inflation.
The rate of inflation can be calculated by finding the rate of change in the price level. The consumer price index is a tool that is used to measure the rate of inflation.
According to the official data, over the last 80 years, the inflation rate has averaged to 3.6% in the US. This means that the price level has increased by a rate of 3.6% in the last 80 years.