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
[{'content': 'lA/A+CI x 100 in the given table is :-Test resultPersons with diseasePersons without diseaseTotalPositiveABA + BNegativeCDC + D \nSelect and explain. \nA. Specificity, B. Sensitivity, C. PPV, D. NPV', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Sensitivity", 'role': 'assistant'}]