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 most favourable prognosis of the type of root\nfracture is seen in \nSelect and explain. \nA. Apical third, B. Middle third, C. Cervical third, D. Junction of middle and cervical third', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]