The "Underground Economy" Refers to

The "underground economy" refers to

A) the buying and selling of goods that is concealed from the government.
B) the production of goods and services used by the government for covert spy operations.
C) the sector of the economy that earns profits that are higher than average.
D) the formal sector of the economy in developing countries.
E) those businesses in the economy that are likely to go out of business in the coming year.