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: ENT
Auditory fatigue is seen at - 
Select and explain. 
A. 90 dB, 4000Hz, B. 110 dB, 4000Hz, C. 130 dB, 4000Hz, D. 150 dB, 4000Hz
A: 90 dB, 4000Hz
Answer: A: 90 dB, 4000Hz 
Explanation: None