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 an example for mature defense mechanism? \nSelect and explain. \nA. Intellectualization, B. Dissociation, C. Displacement, D. Suppression', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Suppression is a mature defense mechanism where a person voluntarily makes decision to not to think about an distressful event and accompanying emotions.', 'role': 'assistant'}]