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 circumferential clasp when used with tooth supported partial dentures: 
Select and explain. 
A. Is usually the most logical clasp to use, B. Has good retentive and stabilizing ability, C. Both, D. None
C: Both
Answer: C: Both 
Explanation: The circumferential clasp is usually the most logical clasp to use with all tooth-supported partial dentures, because of its retentive and stabilizing ability. 
Only when the retentive undercut may be approached better with a bar clasp arm or when esthetics will be enhanced, should the latter be used.