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
Age changes in periodontal ligament include which of the following? 
Select and explain. 
A. Increased fibroplasia, B. Increased vascularity, C. Increased thickness, D. Decreased in number of cementicles
A: Increased fibroplasia
Answer: A: Increased fibroplasia 
Explanation: None