Answer:
First blank: Consumers
Second blank: GDP
Third blank: CPI
Explanation:
The Consumer Price Index is used to measure the basic basket of services and goods that a normal person often buys in order to have a decent quality of life, the GDP includes all goods and services produced, for example all the office equipment, or farm equipment that was produced by a countries economy, the average customer doesn´t need farm equipment nor office equipment that is why it is not taken into account in the Costumer Price Index.