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
What are the EEG waves recorded for the parietooccipital region with subject awake & eye closed 
Select and explain. 
A. Alpha waves, B. Beta waves, C. Delta waves, D. Theta waves
A: Alpha waves
Answer: A: Alpha waves 
Explanation: Alpha rhythm is most marked in parietal and occipital lobe. It is produced when the person is awake with eye closed.