Which of the following is included in GDP? Group of answer choices revenue from the sale of a three-year old car the receipts from a sale of land the fees charged for a stock broker's services the value of lawn care service provided by a sixteen-year-old as part of his weekly chores

The correct answer is letter "B": the fees charged for a stock broker's services.

Explanation:

The Gross Domestic Product (GDP) is a metric of the productivity of a country during a year. To compute the GDP, government expenditures, private investment, individuals' consumption, and net exports (exports minus imports) are added.

The GDP does not include revenues from property that was already sold in previous years because it was already computed in previous periods (options "A" and "C" in the example). When it comes to labor, GDP only includes revenue from eligible and formal sources (option "D" does not match this principle in the example).

Thus, in the example, fees charged for a stock broker's services are considered in the GDP of the year when the transaction took place.