Assume that a tire company sells 4 tires to an automobile company for $400, another company sells a compact disc player for $500, and the automobile company puts all of these items in or on a car that it sells for $20,000. In this case, the amount from these transactions that should be counted in GDP is: A) $20,000. B) $20,000 less the automobile company's profit on the car. C) $20,900. D) $20,900 less the profits of all three companies on the items that they sold.

A) $20,000

Explanation:

Gross domestic product is the total sum of final goods and services produced in an economy within a given period which is usually a year

GDP calculated using the expenditure approach = Consumption spending by households + Investment spending by businesses + Government spending + Net export

Net export = exports – imports

Items not included in the calculation off GDP includes:  

1.services not rendered to oneself

2.Activities not reported to the government  

3.illegal activities

4.sale or purchase of used products

5.sale or purchase of intermediate products

The stereo and the tires wont be included in GDP because they are intermediate goods. It is only the final good, the car, that would be included in GDP

answer; buying the bill at a discount from the face value to be received at maturity;