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': 'Sensitivity is used to calculate: \nSelect and explain. \nA. True negative, B. False positive, C. True positive, D. False negative', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) True positiveSENSITIVITY: Defined as ability of a screening test to identify all those who have disease (cases/ True Posiive)', 'role': 'assistant'}]