This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Alpha waves are typically seen in which of the following states(2018) \nSelect and explain. \nA. Deep sleep, B. Relaxed awake, C. Awake ale, D. Highly focused', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Humans who are awake but at rest with the mind wandering and the eyes closed, the most prominent component of the EEG is a fairly regular pattern of waves at a frequency of 8-13 Hz and amplitude of 50-100 mV when recorded from the scalp. This pattern is the alpha rhythm', 'role': 'assistant'}]