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
[{'content': 'Clasp arms serves the function of \nSelect and explain. \nA. Stabilization, B. Reciprocation, C. Retention, D. Both 2 and 3', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Function and Position of Clasp Assembly Parts', 'role': 'assistant'}]