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: Dental
Balancing side contacts in natural teeth 
Select and explain. 
A. Improves muscle balance, B. Provides balanced occlusion, C. Destruct the PDL, D. Direct the forces to the long axis of the tooth
C: Destruct the PDL
Answer: C: Destruct the PDL 
Explanation: None