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
For a screening test, 90% specificity means that 90% of non-diseased persons will give a - 
Select and explain. 
A. True negative result, B. True positive result, C. False negative result, D. False positive result
A: True negative result
Answer: A: True negative result 
Explanation: None