This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychoanalysis, Subject name: Psychiatry
[{'content': 'A chronic alcoholic blames the family environment as a cause of his alcoholism. This is phenomenon of: \nSelect and explain. \nA. Projection, B. Denial, C. Rationalization, D. Sublimation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Rationalization: Offering rational explanations to justify own unacceptable behavior. For example, an alcoholic blamed his family environment for his habit of excessive drinking. It is a commonly used defense mechanism in substance use disorders.', 'role': 'assistant'}]