请教几个LSAT的题目

1.The labeling of otherwise high-calorie foods are "sugar-free" based on the replacement of ali sugar by artificial sweetners should be prohibited by law.Such a prohibtion 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

Which one of the following if true provides the strongest basis for chanllenging the conclusion above?

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 quickly results.

E.Exactly what appears on a product label is less important to consumer behavior than is relative visual prominence of the different pieces of information that the label contains.

1.The labeling of otherwise high-calorie foods are "sugar-free" based on the replacement of ali sugar by artificial sweetners should be prohibited by law.Such a prohibtion 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

This is a weaken type of question. Based on the stimulus, we knew that the cause is “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" “; the effect of this cause is “labeling of high-calorie foods are "sugar-free" based on the replacement of ali sugar by artificial sweetners should be prohibited by law”. Since this is a cause and effect type of argument. There is couple ways to weaken it. 1. Provide another cause for the same effect, 2. Provide information that the cause do not lead to the conclusion. 3. The effect can happen without the cause.

Which one of the following if true provides the strongest basis for chanllenging the conclusion above?

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

This provides another reason that why artificial sweeteners should be prohibited by law. So this weakens the argument,

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 quickly results.

E.Exactly what appears on a product label is less important to consumer behavior than is relative visual prominence of the different pieces of information that the label contains.