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 model in which dental care is seen as privilege with the professional dominant in practitioner-patient relations is 
Select and explain. 
A. Commercial model, B. Guild model, C. Interactive model, D. None of the above
B: Guild model
Answer: B: Guild model 
Explanation: None