Angel dusting is a process wherein an ingredient, which would be beneficial in a reasonable quantity, is instead added by manufacturers to their products in an insignificant quantity so that they can make the claim that their product contains that ingredient, and mislead the consumer into expecting that they will gain the benefit of that ingredient. For example, a cereal may claim it contains "10 essential vitamins and minerals", but the amounts of each may be only 1% or less of the Reference Daily Intake, providing virtually no benefit or nutrition.

Is the above statements are true, which of the following could be an example of Angel dusting?

(A) A laptop that claims to have the longest battery backup, actually has a backup just 10% longer than is provided by its closest competitor
(B) A book that claims to cover all the concepts of Organic Chemistry actually provides just one example of each concept
(C) A vitamin capsule that claims to contain 23 vitamins and amino acids contains less than 3% of each
(D) A protein shake that claims to contain a magic ingredient that can make muscles grow faster, only contains 20% of this ingredient’s daily recommended intake
(E) An apartment that claims to have used Italian marble for its flooring has used exactly one slab of Italian marble and the remaining ninety-nine slabs of regular marble.


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I think the answer is D as in the original argument the angel dusting is referred with the volume recommended per daily intake and that point is covered in option D

IMO E wins over C and D because it matches the 1% criterion

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