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: Medicine
Absence seizures are characterized on EEG by- 
Select and explain. 
A. 3 Hz spike & wave, B. 1-2 Hz spike & wave, C. Generalized polyspikes, D. Hypsarrythmia
A: 3 Hz spike & wave
Answer: A: 3 Hz spike & wave 
Explanation: None