André Has Begun to Structure His Life Around the Pursuit

André has begun to structure his life around the pursuit and use of drugs.He denies that he has a problem and tries to cover up the behavioural problems he is having because of his drug use.His friends and family now take a distant second place to his drug habit.He is in the ________ stage of drug dependence.

A) experimentation
B) routine use
C) addiction or dependence
D) toxic use