Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Join our Q&A platform and get accurate answers to all your questions from professionals across multiple disciplines. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Which of the following is counted in the calculation of GDP?

a. the trading of 1,000 shares of Microsoft stock.
b. the services of a real estate broker.
c. Social Security payments to retirees from the federal government.
d. the sale of a used car.