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The first one. It shows a collective group following a trend and implying that the reader should follow suit.
The slogan which best exemplifies the band wagon technique is: “America has fallen in love with Morning Bran Cereal. Isn’t it time you fall in love too?
Band Wagon Meaning
The bandwagon effect is characterized by it's use to describe the tendency for people to adopt certain behaviors, styles, or attitudes simply because others are doing so.
More specifically, it is a cognitive bias by which public opinion or behaviours can be influenced due to particular actions and beliefs rallying amongst the public.
On this note, it follows that the first answer choice best exemplifies the bandwagon technique.
Read more on bandwagon;
https://brainly.com/question/1359589