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
PPV does not depend on 
Select and explain. 
A. Sensitivity, B. Specificity, C. Prevalence of disease, D. Incidence of disease
D: Incidence of disease
Answer: D: Incidence of disease 
Explanation: Positive Predictive Value(PPV) depends on

Sensitivity
Specificity
Prevalence of disease

PPV ∝ Prevalence of disease.
PPV is directly proportional to prevalence of disease.