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: Pathology
In a caries-free individual the saliva has: 
Select and explain. 
A. Low buffering capacity for acids, B. Medium buffering capacity for acids, C. High buffering capacity for acids, D. Independent of buffering capacity for acids
C: High buffering capacity for acids
Answer: C: High buffering capacity for acids 
Explanation: None