The correct answer is- a nurse discarding a used syringe in the garbage.
Explanation:
Quality control measures are followed in every hospital and nursing home to ensure the safety of the patient and society. So there is a law about the safe disposal of used syringe which tells that the used syringe can not be disposed of with the normal homes garbage or municipal garbage due to public safety.
As syringe contains infectious agents from the patients a proper procedure should be followed to discard the syringe to reduce the chances of accidents. Used syringe should be put in puncture-proof, rigid container having tight-fitting lid. Then this container should be disposed at the drop off facility site.
So if a nurse is discarding a used syringe in the garbage then she is violating quality control laws.