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 rate of the yearly occurrence of dental Caries attack is referred to as: (or) No. of new caries cases occurring within one year in a patient is referred to as: \nSelect and explain. \nA. Caries mortality, B. Caries experience, C. Incidence of caries, D. Caries prevalence', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]