Final answer:
Final goods in the calculation of U.S. GDP are goods that are at the furthest stage of production and are purchased by consumers for their own use.
Step-by-step explanation:
In the calculation of U.S. GDP, a final good is considered to be a good that is at the furthest stage of production and is not counted more than once to avoid double counting. Final goods are goods that are purchased by consumers for their own use and are not used as inputs in the production of other goods. Examples of final goods include cars, clothing, and food purchased by individuals.