Question ID:PT86 S4 Q17 Passage:Health-care facilities have a duty to protect their patients from unnecessary harm. So, since influenza viruses pose substantial risks to patients, and since vaccines can significantly reduce the spread of these viruses, health-care facilities must institute policies that make influenza vaccinations mandatory for all employees. Stem:Which one of the following is an assumption required by the argument? Correct Answer Choice:DChoice A:Health-care facility employees do not regard mandatory vaccination policies as violating their rights. Choice B:Influenza viruses are the most harmful airborne pathogens to which patients risk exposure when entering a health-care facility. Choice C:Most patients in health-care facilities are not vaccinated against influenza. Choice D:Voluntary vaccination policies at health-care facilities would not adequately protect patients from the risks posed by influenza viruses. Choice E:Society has already accepted the idea of mandatory vaccination in other contexts.