A Chronic alcoholic blames the family environment as a cause of his alcoholism. This is phenomenon of

Ans:C-RationalizationRationalization or rationalisation (also known as making excuses) is a defense mechanism in which controversial behaviors or feelings are justified and explained in a seemingly rational or logical manner to avoid the true explanation, and are made consciously tolerable--or even admirable and superior--by plausible means. It is also an informal fallacy of reasoning.