GDP Excludes Most Items That Are Produced and Sold Illegally

Multiple Choice

GDP excludes most items that are produced and sold illegally and most items that are produced and consumed at home because

A) the quality of these items is not high enough to contribute value to GDP.
B) measuring them is so difficult.
C) the government wants to discourage the production and consumption of these items.
D) these items are not reported on income tax forms.