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
A patient reports to the dentist with symptoms of joint involvement, obscure pain and discomfort and clicking sounds. The patient is a complete denture wearer. The denture should be checked for 
Select and explain. 
A. Increased vertical dimension, B. Reduced vertical dimension, C. Improper centric relation, D. Very Large denture base coverage (over extended denture)
A: Increased vertical dimension
Answer: A: Increased vertical dimension 
Explanation: None