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 among the following has great flexibility: 
Select and explain. 
A. Cast circumferential clasp arm, B. Wrought circumferential clasp arm, C. Cast bar clasp arm, D. Wrought bar clasp arm
B: Wrought circumferential clasp arm
Answer: B: Wrought circumferential clasp arm 
Explanation: None