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
The same screening test is applied to two comunities X and Y;1( shows more false + ye cases as compared to X. The possibility is - 
Select and explain. 
A. High sensitivity, B. High specificity, C. Y community has high prevalence, D. Y community has low prevalence
D: Y community has low prevalence
Answer: D: Y community has low prevalence 
Explanation: Same test is applied on two communities → Sensitivity & Specificity, remain the same.