单选题 In respectable periodicals, books are given reviewing space in inverse proportion to the likely size of their sales. Airport and supermarket bookstalls stock only books that are expected to sell in large numbers. Consequently, those who buy books at such bookstalls have to do so without any guidance whatever from the book reviewers whose work is published in respectable periodicals.
Which of the following is a valid criticism of the argument above?

A、 Bookstalls like those found at airports and in supermarkets are designed to induce people to buy books on impulse.
B、 The assortment of books available at airport bookstalls is different from the assortment of books available at supermarket bookstalls.
C、 The fact that a book is expected to sell well does not guarantee that actual sales will be large.
D、 Many who later come to be respected as book reviewers start their careers by writing for trashy magazines.
E、 (E) The conclusion that respectable periodicals never publish reviews of projected bestsellers is unwarranted.

【正确答案】 E

【答案解析】