Answer:
D) the value of the services of the real estate agent
Explanation:
Real estate are not included in the calculation of GDP. However, their related services such as the services of an agent is included in GDP calculation.
Freud would say that is, "it has been sublimated into a socially desirable behavior." This is sort of a defense mechanism, in which socially inadmissible driving forces or admirations are unwittingly changed into socially adequate activities or conduct, perhaps bringing about a long haul transformation of the underlying motivation.