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
The pontic that should be used in the posterior mandibular area is: 
Select and explain. 
A. Modified saddle., B. Saddle., C. Sanitary., D. Bullet shaped.
C: Sanitary.
Answer: C: Sanitary. 
Explanation: None