Which Is the Best Description of the "Wanting" Part of the Wanting

Which is the best description of the "wanting" part of the wanting - and - liking theory?

A) Addiction occurs because users take a drug to avoid unpleasant psychological withdrawal systems.
B) Addiction develops subconsciously as a result of conditioned learning.
C) Addiction is the result of users taking drugs that produce pleasure.
D) Addiction results from activity in the mesolimbic dopamine system.
Answer Key