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
The occlusal clearance of an onlay is best detected by: 
Select and explain. 
A. Depth cuts, B. Visual inspection, C. Wax chew-in, D. Articulating paper
C: Wax chew-in
Answer: C: Wax chew-in 
Explanation: None