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': 'Which of the following characteristics is not of much impoance in a screening test- \nSelect and explain. \nA. Low cost, B. High safety margin, C. High sensitivity, D. High specificity', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ref: ref: Park&;s 23rd edition pg 137 Screening test must satisfy the criteria of acceptability, repeatablity and validity, desides others like yield, simplicity, safety, rapidity, ease of administration and cost. Specificity: defined as the ability of a test to correctly identify those who do not have the diesase, that is "true negatives". A screening test need not have high specificity.', 'role': 'assistant'}]