Which supporting detail would most strengthen a passage whose main idea is 'Hand hygiene is the single most effective way to prevent the spread of healthcare-associated infections'?
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AStudies show that consistent handwashing by healthcare workers reduces infection transmission rates by up to 50%.
BHealthcare workers receive annual training on a variety of infection-control topics.
CPersonal protective equipment such as gloves and gowns is required in isolation rooms.
DMany hospitals have installed automated hand sanitizer dispensers near elevator banks.
✓ Correct answer: A. Studies show that consistent handwashing by healthcare workers reduces infection transmission rates by up to 50%.A supporting detail must directly reinforce the main idea; a statistic demonstrating that handwashing reduces transmission by up to 50% directly supports the claim that hand hygiene is the most effective preventive measure.
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