求助 一道未讨论过的逻辑 Prep1—99

HeavenlyAres

99. Denoma, a major consumer-electronics maker, had a sizable decline in sales revenue for its most recent fiscal year.  This result appears surprising, because electronics retailers report that although their overall sales were considerably lower than in the previous year, their sales revenue from Denoma models actually grew, largely thanks to some innovative and popular models that Denoma introduced.



Which of the following, if true, does most to explain the apparently surprising result?



A. Because of the need to educate the public about its new models’ capabilities, Denoma’s advertising spending was higher than normal over the period.

B. For the period at issue, Denoma’s major competitors reported declines in revenue that were, in percentage terms, greater than Denoma’s.

C. A significant proportion of Denoma’s revenue comes from making components for other consumer-electronics manufacturers.

D. Unlike some of its major competitors, Denoma has no lines of business outside consumer electronics to provide revenue when retail sales of consumer electronics are weak.

E. During the period, consumer-electronics retailers sold remaining units of Denoma’s superseded models at prices that were deeply discounted from those models’ original prices.

C is correct. 尽管C很直接，但我想问下A和E不是同样对于sales上升revenue下降给出了解释么？刚开始复习逻辑对无关选项的概念很模糊，希望哪位帮忙指点下，多谢了！

sunny0928

a我认为是无关选项，
而e 说的是sold remaining units那么就是说数量没变，怎么增加呢
不知道这个答案可不可以

rainbowmanutd

a说的广告，和销售收入无关
e说的是卖替代品，也无关

Allison55

D的总收入是下降的，但是他的零售商的销售收入是提高了的，尽管销售量小了
这就说明（1）D的收入来源占比，除了卖给零售商retailer，还有别人，而别人这块的收入是下降的，而且这部分收入所占比重更大。（C选项提供一个“别人”：manufacturers）
（2）为什么会下降：manufacturer和retailer的隐含关系，retailer的销售量小了，进货就少了，供货的manufacturer自然收入就会下降，而D是manufacturer的manufacture，自然也会下降