The Gross Domestic Product of an Economy Is

The gross domestic product of an economy is

A) the total value of the spending on final goods and services produced domestically by households, businesses, government, and foreigners.
B) the total value of production across all sectors of the economy.
C) the total wage and profit income earned by the different groups of people that produce output within the economy.
D) all of the above.
E) none of the above.