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': 'Alpha wave on EEG represent \nSelect and explain. \nA. Awake and fully alert, B. Awake with eyes closed with mind wandering, C. Awake with eyes open, D. Deep sleep', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]