GMAT-4-38请教求解思路（来自GWD小班课堂）

sv2000

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?

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yangsh

B.

题目：人们要用可回收材料，介绍回收型产品和品牌的书会有所帮助。出版这类书一定会提高人们用回收材料。

支持：厂商不愿宣传他们产品是可回收的，因此书可以让人们了解这个回收特性。

毛妖妖