This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Screening, Subject name: Social & Preventive Medicine
Specificity measures - 
Select and explain. 
A. True negative, B. False positives, C. True positives, D. None of the above
A: True negative
Answer: A: True negative 
Explanation: specificity is defined as the ability of a test to identify correctly those who do not have the disease,that is true negatives.ref;parks gextbook,ed22 ,pg no 131