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
Hygienic pontic is usually recommended in: 
Select and explain. 
A. Maxillary anterior area, B. Mandibular area, C. Maxillary posterior area, D. Mandibular posterior area
D: Mandibular posterior area
Answer: D: Mandibular posterior area 
Explanation: None