This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cognitive Development, Subject name: Psychiatry
[{'content': 'Sigmund Freud gave various defense mechanisms. Which of the following is not a mature defense mechanism? \nSelect and explain. \nA. Humor, B. Projection, C. Asceticism, D. Altruism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. ProjectionAll of the others are mature defenses. Anticipation is goal directed and involves realistic anticipation or planning for future inner discomfort. Suppression involves the conscious postponement of attention to a conscious impulse or conflict. Altruism uses constructive and instinctually satisfying service to others to undergo a vicarious experience. Asceticism involves the assignment of value to specific pleasure and is directed against all base pleasures.', 'role': 'assistant'}]