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 primary indication for precision attachment of RPD when the abutment teeth are well supported when the patient is: 
Select and explain. 
A. Esthetically concerned, B. Abutment teeth require restoration, C. No posterior abutment teeth are present, D. When teeth are present on both the ends of the edentulous area
D: When teeth are present on both the ends of the edentulous area
Answer: D: When teeth are present on both the ends of the edentulous area 
Explanation: None