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': 'On the basis of type of well as duration of Cervical 1/3 root fracture is splinted for \nSelect and explain. \nA. Rigid 3 months, B. Rigid 6-8 weeks, C. Flexible 3 months, D. Flexible 6-8 weeks', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Splinting should always be semirigid or flexible to prevent ankylosis', 'role': 'assistant'}]