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
A reliable guide for positioning maxillary anterior teeth
is complete dentures is 
Select and explain. 
A. Fovea palatine, B. Incisive papillae, C. Maxillary ridge, D. Rugae
B: Incisive papillae
Answer: B: Incisive papillae 
Explanation: None