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
Positive predictive value of a test does not depends upon 
Select and explain. 
A. Incidence of disease, B. Specificity, C. Prevalence of disease, D. Sensitivity
A: Incidence of disease
Answer: A: Incidence of disease 
Explanation: None