This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep disorders and eating disorders, Subject name: Psychiatry
[{'content': "EEG waves are called \nSelect and explain. \nA. Delta waves, B. Berger's waves, C. REM rhythm, D. NERM rhythm", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hans Berger, a German psychiatrist, pioneered the EEG in humans in 1924. EEG waves have been named after him. Ref: EEG: An Introductory Text and Atlas of Normal and Abnormal Findings in Adults, Children, and Infants. Erik K and Lauren C Frey. American epilepsy society. pg 4.', 'role': 'assistant'}]