19. GDP refers to _________.

A. the amount of personal disposable income in the economy

B. the difference between government spending and government revenues

C. the total manufacturing output in the economy

D. the total production of goods and services in the economy

20. Peter Lynch said the most important thing about owning an investment is _________.

A. To know how much you own

B. To know what you own

C. To know where interest rates are going

D. To know what you are doing for lunch