Gross domestic product is defined as the total market value of all goods and services produced by a country in a year?

• A. Investments
• B. All goods produced by the country
• C. All services produced by the country
• D. All goods and services produced by a country in a year

Answer: (D)

GDP measures the total market value of all final goods and services produced within a country’s borders in a given period, typically one year. The best answer captures both kinds of output (goods and services) and the time frame, so it reflects production inside the country during that year. The other options miss parts of the picture: focusing only on investments omits many other goods and services; listing all goods ignores services; listing all services ignores goods.