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': 'Daily depressed mood for minimum ________ weeks is must to classify someone as suffering from major depression disease - \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Symptoms of depression should be present for at least 2 weeks.', 'role': 'assistant'}]