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
Caries estimated by all except 
Select and explain. 
A. Family member, B. Genetic factors, C. Cephalometric analysis, D. Salivary flow
C: Cephalometric analysis
Answer: C: Cephalometric analysis 
Explanation: None