[求助]gwd-12-40

I am confused by A and C; finally, I choose C;

Which of the following most logically completes the argument?

Researchers recently asked dozens of shoppers, chosen at random coming out of a FoodBasket supermarket, what they had purchased.  The prices of the very same items at the nearest ShopperKing supermarket were totaled and compared with the FoodBasket total.  The ShopperKing totals averaged five percent higher than the FoodBasket totals.  Nevertheless, this result does not necessarily show that shoppers at ShopperKing would save money overall by shopping at FoodBasket instead, since ______.

1. shoppers who shop regularly at a given supermarket generally choose that store for the low prices offered on the items that they purchase most often


2. for shoppers with more than 20 items, the ShopperKing totals averaged more than five percent higher than the FoodBasket totals


3. many shoppers consider factors other than price in choosing the supermarket at which they shop most regularly


4. there is little variation from month to month in the overall quantity of purchases made at supermarkets by a given shopper


5. none of the people who conducted the research were employees of the FoodBasket supermarket

偶选A。

文中最后一句话的意思是通常在SK购物的人到FB去购物未必会省钱，因为：
A. 消费者通常到选定这样一个超市，他们最频繁购买的东西在那家的超市里的价格是最低的。

具体的说，假如有商品A,B,C,D,E。

在SK超市里A,B,C的价格比FB超市低。而FB超市里D,E的价格又比SK里的低。

那么假如一个消费着经常需要消费A,B,C商品，所以他会选SK超市，因为他到FB超市去买的话A,B,C反而贵，符合文中最后一句话。

同意les.其实是道解释题

1. 根据对十几人的随机调查,在shopper king要比food basket贵5个百分点

2. 然而这并不意味着在shopper king购物的消费者换到food basket都能省钱

解释就是A,不同的人买的东西不一样,价格也会因超市而异

如果是C,消费者不太考虑价格因素,就质疑了题干了

C 是错的

因为问的是要解释this result does not necessarily show that shoppers at ShopperKing would save money overall by shopping at FoodBasket instead的原因，这个原因是有关SAVE  MONEY，而C只是解释顾客有可能光顾ShopperKing 而非FoodBasket 。

A 的分析同意LES。

文中的＂very same items"指的是什么？如果是说两家超市被采访者买的东西是very same items的话，Ａ似乎也有点问题啊？

"very same items" -- the items purchased at FoodBasket by the "dozens of shoppers" asked.

These items does not necessarily represent the "the items that they purchase most often" in A.

Researchers recently asked dozens of shoppers, chosen at random coming out of a FoodBasket supermarket, what they had purchased.文中第一句和推理有什么关系，导致我全文看的不是很清楚。

nn指点！

3X