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
Clicking of denture during speaking is due to 
Select and explain. 
A. Increased vertical dimension of occlusion, B. Increased interocclusal space, C. Decreased vertical dimension of occlusion, D. Both 'B' & 'C'
A: Increased vertical dimension of occlusion
Answer: A: Increased vertical dimension of occlusion 
Explanation: None