Question:
Advertisement: 'Nine out of ten dentists recommend BrightSmile toothpaste. Therefore, BrightSmile must be the best toothpaste available for everyone.' The reasoning in the advertisement is most flawed because it
Advertisement: 'Nine out of ten dentists recommend BrightSmile toothpaste. Therefore, BrightSmile must be the best toothpaste available for everyone.' The reasoning in the advertisement is most flawed because it
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Try naming the specific logical fallacy the advertisement commits before matching it to an option.
Updated On: Jul 8, 2026
- assumes that what most dentists recommend is necessarily the best choice for every individual.
- relies on data that was gathered from a survey of dentists.
- provides a specific numerical figure to support its claim.
- directly compares BrightSmile with every other available brand.
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The Correct Option is A
Solution and Explanation
The advertisement leaps from 'most dentists recommend it' to 'best for everyone', wrongly assuming a general recommendation must be the best choice for each individual. Using survey data or a numerical figure is not itself a flaw, and the ad does not actually compare BrightSmile with every brand. The correct option is 'assumes that what most dentists recommend is necessarily the best choice for every individual.'
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