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
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: 
Select and explain. 
A. Caries mortality, B. Caries experience, C. Incidence of caries, D. Caries prevalence
C: Incidence of caries
Answer: C: Incidence of caries 
Explanation: None