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': 'Most common age for depression is: \nSelect and explain. \nA. Middle age female, B. Middle age male, C. Young girl, D. Children', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Middle age female', 'role': 'assistant'}]