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': 'Factor responsible for resorbability of primary dentition is/are: \nSelect and explain. \nA. Resorption is genetically determined., B. Primary teeth have successors which apply pressure., C. Both of the above., D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]