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
Alpha waves are typically seen in which of the following states(2018) 
Select and explain. 
A. Deep sleep, B. Relaxed awake, C. Awake ale, D. Highly focused
B: Relaxed awake
Answer: B: Relaxed awake 
Explanation: 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