5.(Z) 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 _____.
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
6.(Z)Which of the following most logically completes the reasoning?
Either food scarcity or excessive hunting can threaten a population of animals. If the group faces food scarcity, individuals in the group will reach reproductive maturity later than otherwise. If the group faces excessive hunting, individuals that reach reproductive maturity earlier will come to predominate. Therefore, it should be possible to determine whether prehistoric mastodons became extinct because of food scarcity or human hunting, since there are fossilized mastodon remains from both before and after mastodon populations declined, and ______.
A. there are more fossilized mastodon remains from the period before mastodon populations began to decline than from after that period
B. the average age at which mastodons from a given period reached reproductive maturity can be established from their fossilized remains
C. it can be accurately estimated from fossilized remains when mastodons became extinct
D. it is not known when humans first began hunting mastodons
E. climate changes may have gradually reduced the food available to mastodons
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