From 2009 to 2013,the price level in the U.S.has increased by 8.3 percent.This implies that the price index in 2012 was:

A) 108.3.
B) 183.
C) 100.
D) 98.3.
E) 92.7.

Price Index

A number that shows the average price of products; changes in a price index over time show changes in the economy’s average price level.

Price Level

A measurement of the average of current prices across the entire spectrum of goods and services produced in the economy.