What gives the measure of the overall market value of goods and services produced in the economy?
A. The sum of payments that the government makes to individuals without expecting a good or service in return
B. The sum of all individuals, banks, and other institutions that buy and sell stocks and bonds.
C. The sum of the rate of change in price for all goods and services produced within one year.
D. The sum of consumer spending on goods and services, investment spending, government purchases of goods and services, and the value of exports, then subtract the value of imports.