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': 'Resorbability of the roots of primary dentition is explained by \nSelect and explain. \nA. Genetically determined, B. Pressure applied by successors, C. Both 1 and 2, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Resorbability of the roots depends on both the above factors.\nIf there is no successor of primary tooth then it function as a permanent tooth and its root does nor resorb which indicates that its dependency on pressure applied by successor. It also depends on the genetic factors.', 'role': 'assistant'}]