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
[{'content': 'Which of the following is a mature defense mechanism? \nSelect and explain. \nA. Anticipation, B. Projection, C. Undoing, D. Isolation of affect', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Anticipation is a mature defense mechanism where an individual plans in advance to deal with an uncomfortable event.\nEx: A student who has failed in his exam plans for his arguements to console his parents while returning home.', 'role': 'assistant'}]