This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The following has high frequency: 
Select and explain. 
A. Beta waves, B. Alfa waves, C. Teta waves, D. Delta waves
A: Beta waves
Answer: A: Beta waves 
Explanation: Beta waves has high frequency and low amplitude Delta waves has low frequency and high amplitude