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
Which is true of alveolar bone 
Select and explain. 
A. Most stable of the periodontal tissues, B. It is in a constant state of flux, C. It is not regulated by systemic and local influences, D. All of the above
B: It is in a constant state of flux
Answer: B: It is in a constant state of flux 
Explanation: None