prep 逻辑题目 谢谢大家帮忙解答疑惑

joanna5200

请教prep1-124

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 __________. A. 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 B. for shoppers with more than 20 items, the ShopperKing totals averaged more than five percent higher than the FoodBasket totals C. many shoppers consider factors other than price in choosing the supermarket at which they shop most regularly D. there is little variation from month to month in the overall quantity of purchases made at supermarkets by a given shopper E. none of the people who conducted the research were employees of the FoodBasket supermarket

正确答案是：A 但是我选择了C  C选项哪里不对呢， 考虑其他因素也很合理啊？？？求大家帮帮忙 谢谢了

francoisyang

SK平均比FB高5%，但不代表所有东西都是SK高。
A表明选1家店主要原因是平时买的品种在这家店便宜，可以推断在SK买东西的人所买的东西在SK币在FB便宜。
C说考虑其他因素，但这个和到底哪里花钱多没有关联。

杀G路小白

这里要探讨的问题是原来在SK买东西的人在FB买东西会不会省钱，C选项其实已经歪曲方向了，朝着为什么价格贵但顾客还是在SK买东西的方向越走越远，已经跟省不省钱这个问题没有半毛钱关系了。