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
Which of the following configuration is used in designing an RPD with Kennedy — Class II edentulous arch? 
Select and explain. 
A. Bilateral, B. Tripod, C. Quadrilateral, D. Unilateral
B: Tripod
Answer: B: Tripod 
Explanation: None