To which category of U.S. GDP expenditure does each of the following correspond?
a. Department of Motor Vehicles services.
b. Automobiles exported to Europe.
c. A refrigerator.
d. A newly constructed four-bedroom house.
e. A restaurant meal.
f. Additions to inventory at a furniture store.
g. F-16 fighter jets built by a U.S. aerospace corporation and contracted for by the government.
h. A new steel mill.