In respectable periodicals

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 book stalls have to do so without any guidance whatever from the book reviewers whose work published in respectable articles.

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 that of books available at supermarket bookstalls.
C.The fact the 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. The conclusion that respectable periodicals never publish reviews of projected best sellers is unwarranted.

选哪个？为什么？