一道PREP逻辑！大神求教

evenhuang0502

The Calex Telecommunications Company is planning to introduce cellular telephone service into isolated coastal areas of Caladia, a move which will require considerable investment.  However, the only significant economic activity in these areas is small-scale coffee farming, and none of the coffee farmers make enough money to afford the monthly service fees that Calex would have to charge to make a profit.  Nevertheless, Calex contends that making the service available to these farmers will be profitable.

Which of the following, if true, provides the strongest support for Calex's contention?

	Currently, Caladian coffee farmers are forced to sell their coffee to local buyers at whatever price those buyers choose to pay because the farmers are unable to remain in contact with outside buyers who generally offer higher prices.
	In the coastal areas of Caladia where Calex proposes to introduce cellular telephone service, there is currently no fixed-line telephone service because fixed-line companies do not believe that they could recoup their investment.
	A cellular telephone company can break even with a considerably smaller number of subscribers than a fixed-line company can, even in areas such as the Caladian coast, where there is no difficult terrain to drive up the costs of installing fixed lines.
	Calex bases its monthly fees for cellular telephone service in a given region partly on the cost of installing the necessary equipment to provide the service there.
	Calex has for years made a profit on cellular telephone service in Caladia's capital city, which is not far from the coastal region.

这题选A，可是我感觉A完全跟原文一点关系都没有啊

berton

题目说的是这个安装电话可以使得咖啡农民获利，问加强。
而选项b说的是没有fixed-line telephone service，because解释为什么没有！
题目在问这个措施能否获利，跟有没有无关。
而a选项说的是没有这个service他们就被迫将咖啡卖给这些当地的买家，而外地的买家通常会给更多的价格！
所以b才是无关的选项

yanxue33333

a选项说农民因为没有能联系外界的方式只能以买家想支付的任何价格卖掉，显然这里的农民是有电话需求的，所以选a. 而b可以说是无关选项。说别的公司没有提供电话服务，那么就算这个公司提供服务了，该地没有需求也一样不会盈利，所以b无法解释。

evenhuang0502

yanxue33333 发表于 2014-11-7 14:22
a选项说农民因为没有能联系外界的方式只能以买家想支付的任何价格卖掉，显然这里的农民是有电话需求的，所 ...

我懂了！！万分感谢！