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 complete clasp assembly consists of a 
Select and explain. 
A. Retentive arm and a reciprocal arm, B. Circumferential arm and a bar-type arm, C. Proximal plate and a retentive arm, D. Retentive arm, an occlusal rest, and reciprocating elements
D: Retentive arm, an occlusal rest, and reciprocating elements
Answer: D: Retentive arm, an occlusal rest, and reciprocating elements 
Explanation: None