求解

scholar

Which of the following most logicallycompletes the argument?

Yorco and Zortech are two corporations thatemploy large numbers of full-time workers who are paid by the hour.  ublicly available records indicate thatYorco employs roughly the same number of such hourly wage workers as Zortechdoes but spends a far higher total sum per year on wages for such workers.  Therefore, hourly wages must be higher, onaverage, at Yorco than at Zortech, since __D___. 我选c

1. Zortech     spends a higher total sum per year than Yorco does to provide its hourly     wage workers with benefits other than wages
   
2. 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
   
3. the     proportion of all company employees who are hourly wage workers is     significantly greater at Yorco than it is at Zortech
   
4. 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
   
5. the     highest hourly wages paid at Yorco are higher than the highest hourly     wages paid at Zortech                  
   

sdcar2010

Do some math and you will know D is right.