This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
"Rationalization" is seen in 
Select and explain. 
A. Schizophrenia, B. Phobia, C. Obsessive compulsive disorder, D. Substance abuse disorder
D: Substance abuse disorder
Answer: D: Substance abuse disorder 
Explanation: 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.