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
After rupture of tympanic membrane the hearing loss is - 
Select and explain. 
A. 10-40 dB, B. 5-15 dB, C. 20 dB, D. 300 dB
A: 10-40 dB
Answer: A: 10-40 dB 
Explanation: None