In the Process of Calculating the Production of the Economy

Multiple Choice

In the process of calculating the production of the economy of the United States, which of the following must be taken into account?

A) The fact that some of the goods that people buy are shipped to the United States from abroad
B) The fact that some of the goods produced in the economy are shipped to other countries
C) The fact that some goods are used as inputs into the production of other goods, like hamburgers
D) All of the above
E) Only a and b