我的几道LSAT逻辑5

renaversace

The labeling of otherwise high-calorie foods as "sugar-free," based on the replacement of all sugar by artificial sweeteners, should be prohibited by law. Such a prohibition is indicated because many consumers who need to lose weight will interpret the label "sugar-free" as synonymous with "low in calories" and harm themselves by building weight-loss diets around foods labeled "sugar-free." Manufacturers of sugar-free foods are well aware of this tendency on the part of consumers.
11. Which one of the following, if true, provides the strongest basis for challenging the conclusion in the passage?
(A) Food manufacturers would respond to a ban on the label "sugar-free' by reducing the calories in sugar-free products by enough to be able to promote those products as diet foods.
(B) Individuals who are diabetic need to be able to identify products that contain no sugar by reference to product labels that expressly state that the product contains no sugar.
(C) Consumers are sometimes slow to notice changes in product labels unless those changes are themselves well advertised.
(D) Consumers who have chosen a particular weight-loss diet tend to persist with this diet if they have been warned not to expect very quick results.
(E) Exactly what appears on a product label is less important to consumer behavior than is the relative visual prominence of the different pieces of information that the label contains.
为什么B对呢？DIABETIC的人的行为并不能用来加强想LOSE WEIGHT的人的做法啊