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': 'Which of the following factors does not need to be considered when evaluating a crown fracture with pulp exposure? \nSelect and explain. \nA. Extent of fracture, B. Stage of root development, C. Position in the arch, D. Length of time since the injury', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]