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 posterior palatal seal for a maxillary complete denture: 
Select and explain. 
A. Is placed immediately posterior to the vibrating Line, B. placed immediately anterior to the vibrating tine, C. Is not necessary if a metal base is made, D. Will vary in outline and depth according to the palatal form
D: Will vary in outline and depth according to the palatal form
Answer: D: Will vary in outline and depth according to the palatal form 
Explanation: None