What approach does the ad "More cats are eating CalKlan cat food than ever" exemplify?

The ad "More cats are eating CalKlan cat food than ever" exemplifies the Join the Bandwagon Appeal because it suggests that since many cats are already choosing this particular brand, others should too. This approach plays on the social psychology notion of conformity, implying that a product is desirable because it is popular or widely accepted. By highlighting the large number of cats consuming CalKlan, the advertisement encourages pet owners to jump on the bandwagon and follow the trend, thereby increasing the appeal of the cat food. Essentially, it fosters a sense of urgency to be part of a popular choice, suggesting that a decision to buy CalKlan is reinforced by its perceived popularity among other pet owners and their cats.