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
[{'content': 'Specifivity of a test refers to its ability to detect - \nSelect and explain. \nA. True positive, B. True negative, C. False negative, D. False positive', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref:Parks 23rd edition pg 136 specificity is defined as the ability of a test to identify those who do not have the disease. That is true negatives.', 'role': 'assistant'}]