It seems like you're presenting two different questions about techniques used in advertisements. Both questions inquire about persuasive techniques, and here are the possible answers:
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Bandwagon appeal - This technique is used to convince someone they should like or do something because everyone else does. If the advertisement suggests that a product is popular or widely used, this technique is being employed.
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Glittering generalities - This is the use of very positive language to describe something, appealing to people's emotions or values. If the advertisement uses broad, positive terms without offering specific details, it could be utilizing this strategy.
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Snob appeal - This technique influences people by suggesting that a product is only for a select or elite group. If the advertisement features celebrities or focuses on exclusivity, it would be an example of snob appeal.
To answer each question adequately, it is crucial to analyze the specific content of the advertisements you are referencing. If an advertisement emphasizes popularity, the answer would be bandwagon appeal; if it employs positive language, glittering generalities; and if it focuses on celebrity endorsements, snob appeal.