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
In examining the edentulous mouth of an aged patient wearing complete maxillary denture against six mandibular teeth, the dentist will see: 
Select and explain. 
A. Cystic degeneration of the foramina of the anterior palatine nerve, B. Loss of osseous structure in the anterior maxilla, C. Flabby tissue in the posterior region, D. Decrease interocclusal distance
B: Loss of osseous structure in the anterior maxilla
Answer: B: Loss of osseous structure in the anterior maxilla 
Explanation: None