Which of the following most logically completes the argument?
Yorco and Zortech are two 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 higher total sum per year on wages for such workers. Therefore, hourly wages must be higher, on average, at Yorco than at Zortech, since _____.
Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages
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
the proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech
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
the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech
Y和Z两个公司的工人都是全日制时薪制,他们招的这类工人的数量一样,但是Y公司支付的总工资比Z高,所以一定是Y的平均工资比Z高,因为什么当时想的选项可能是用一个fact说明就是Y的平均工资比Z高 。错选A,benefit不是wage,和benefit没有关系。D选项是从侧面加强了结论,他说因为两个公司都没有加班费,这就排除了确实是他的平均薪资高而不是加班费高(加班费不算在平均薪资里的)
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