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: Radiology
Which of the following has greater bone density? 
Select and explain. 
A. Posterior mandible, B. Posterior maxilla, C. Anterior maxilla, D. Anterior mandible
D: Anterior mandible
Answer: D: Anterior mandible 
Explanation: None