Classify each of the following items as a final good or service or an intermediate good or​ service, and identify which is a component of consumption​ expenditure, investment, or government expenditure on goods and services.
A. Airline ticket is bought by a student.
B. New airplanes bought by Southwest Airlines.
C. Cheese bought by Domino's.
D. Your purchase of a new iPhone.
E. New house bought by Bill Gates.