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': 'The advantage of silver point as obturating material is\nthat it \nSelect and explain. \nA. Can be used in fine tortuous canals, B. Is easier to retrieve if retreatment becomes necessary, C. Gives a perfect seal at the apical 1/3rd of the root canal, D. Provides better adaptation to canal walls compared to GuttaPercha', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]