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
Dentist participating in the delta dental planers paid 90th percentile whereas non-participating dentists are paid 
Select and explain. 
A. 15th percentile, B. 30th percentile, C. 100th percentile, D. 50th percentile
D: 50th percentile
Answer: D: 50th percentile 
Explanation: None