"Rationalization" is seen in: (A) Schizophrenia, (B) Phobia, (C) Obsessive compulsive disorder, (D) Substance abuse disorder
Answer is D. Rationalization is a neurotic defense mechanism where an individual gives rational explanation to justify his own unacceptable behavior, seen in substance abuse disorder.
Ex: A chronic alcoholic blames his family environment as a cause of his alcoholism.