Answer: Option A
Explanation:
The CPI measures only the level of prices in a given year, not the percentage change in prices from one year to the next.
CPI means consumer price index it is used to measures changes in the price level of a weighted average market basket of consumer product usually goods and services purchased by households. The CPI is a statistical estimate that is constructed using the prices of a sample of items whose prices are collected periodically, it measures the changes but doesn’t express as a percentage.