Many residents of Calovia are committed to using products containing recycled materials. Soon these consumers will get help in identifying such products from a book being published by the Calovian government. The book offers a comprehensive listing, by product type and brand, of goods sold in Calovia that contain recycled material. Therefore, publication of the book will almost certainly increase the use of products containing recycled materials in Calovia.
Which of the following, if true, most strengthens the argument?
A. Proceeds from the sale of the book are not expected to exceed the cost of its publication.
B. For numerous types of products, there are many brands that use recycled materials, although their manufacturers and distributors do nothing to advertise those brands’ recycled content.
C. For many materials, such as plastics, the recycling process results in a lower grade of material with a correspondingly different range of uses.
D. For many types of products listed in the book, all the brands available in Calovia use recycled materials.
E. Many manufacturers of products that contain recycled materials vary the proportion of recycled materials in those products in response to changes in price and availability.
Although the discount stores in Goreville’s central shopping district are expected to close within five years as a result of competition from a SpendLess discount department store that just opened, those locations will not stay vacant for long. In the five years since the opening of Colson’s, a nondiscount department store, a new store has opened at the location of every store in the shopping district that closed because it could not compete with Colson’s.
Which of the following, if true, most seriously weakens the argument?
A. Many customers of Colson’s are expected to do less shopping there than they did before the SpendLess store opened.
B. Increasingly, the stores that have opened in the central shopping district since Colson’s opened have been discount stores.
C. At present, the central shopping district has as many stores operating in it as it ever had.
D. Over the course of the next five years, it is expected that Goreville’s population will grow at a faster rate than it has for the past several decades.
E. Many stores in the central shopping district sell types of merchandise that are not available at either SpendLess or Colson’s.
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