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: Social & Preventive Medicine
The limit of loudness expressed as decibels that people can tolerate without substantial damage to their hearing is – 
Select and explain. 
A. 55, B. 65, C. 75, D. 85
D: 85
Answer: D: 85 
Explanation: None