Which of the Following Statements About GDP Is Correct

Multiple Choice

Which of the following statements about GDP is correct?

A) GDP measures two things at once: the total income of everyone in the economy and the unemployment rate.
B) Money continuously flows from households to government and then back to households, and GDP measures this flow of money.
C) GDP is to a nation's economy as household income is to a household.
D) All of the above are correct.