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
lA/A+CI x 100 in the given table is :-Test resultPersons with diseasePersons without diseaseTotalPositiveABA + BNegativeCDC + D 
Select and explain. 
A. Specificity, B. Sensitivity, C. PPV, D. NPV
B: Sensitivity
Answer: B: Sensitivity 
Explanation: Ans. is 'b' i.e., Sensitivity