Until now, only injectable vaccines against influenza have been available. Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of seirous complications of influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spary, is effect for children. However, since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray.
Which of the following is an assumption on which the argument depends?
A. Any person who has received the injectable vaccine can safely receive the nasal spray vaccine as well.
B. The new vaccine uses the same mechnaism to ward off influenza as injectable vaccines do.
C. The injectable vaccine is affordable for all adults.
D. Adults do not contract influenza primarily from children who have influenza.
E. The nasal spray vaccine is most effective when administred to adults.
==> I guess D, which is right, but not sure why...i tried using the negation test..hmm
Yorco and Zortech are 2 corporations that employ large numbers of full-time workers who are paid by the hour. Publicly available records indicate that Yorco employs roughly the same number of such hourly wage workers as Zortech does but spends a far highter total sum per year on wages for such workers. Therefore, hourly wages must be higher on average at Yorco than at Zortech, since ____.
A. Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages.
B. the work performed by hourly wage workers at Zortech does not require a significantly higher level of skill than the work performed by hourly wage workers at Yorco does.
C. The proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech.
D. Overtime work, which is paid at a substantially higher rate than work done during the regular work week, is rare at both Yorco and Zortech.
E. the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech.
I chose E, but the answer is D. E sounds right!