Which of the following best completes the passage below?

Sales campaigns aimed at the faltering personal computer market have strongly emphasized ease of use, called user-friendliness. This emphasis is oddly premature and irrelevant in the eyes of most potential buyers, who are trying to address the logically prior issue of whether______>>

(A) user-friendliness also implies that owners can service their own computers

(B) personal computers cost more the more user-friendly they are

(C) currently available models are user-friendly enough to suit them

(D) the people promoting personal computers use them in their own homes（E）

(E) they have enough sensible uses for a personal computer to justify the expense of buying one

请问这道T为什么不选C呢？

具体的说：

原题：生产商向顾客强调其“操作友好”的特性，但顾客认为这个特性的强调不成熟。因为他们会先

考虑什么？

答案e说的是利用程度与费用的比较。意思是不管什么特性，不管这特性有多强大，我得先考虑我是

否非常需要这种特性，然后再跟价格比较，来决定到底买不买。在营销学里叫做customer value：

the differences between the benefits a customer sees from a offering and the costs the

obtaining those benifits