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: Social & Preventive Medicine
Following is part of “Sentinel Surveillance” EXCEPT 
Select and explain. 
A. Method for identifying the missing cases, B. Supplementing the notified cases, C. To estimate the fatality of the disease, D. To estimate the disease prevalence in total population
C: To estimate the fatality of the disease
Answer: C: To estimate the fatality of the disease 
Explanation: None