A product has this advertising claim on back of the box: Don,t be the only one not using Brand X Which advertising approach is being used to try to persuade you to buy the product a price appeal b scientific studies c the bandwagon d comparison to other products

The advertising approach being used to persuade you to buy the product is the bandwagon technique. The claim is trying to convince you to join the majority by using Brand X, implying that everyone else is already using it and you would not want to be left out.

The advertising approach being used in this case is called the bandwagon. The statement "Don't be the only one not using Brand X" is a clear appeal to the consumer's desire to fit in and be part of a group or community. The idea behind this approach is to create a sense of social pressure, making the consumer feel that they will miss out or be left behind if they don't use the product. By suggesting that everyone else is using Brand X, the advertisement aims to persuade the consumer to join the group and purchase the product.

The advertising approach being used to persuade you to buy the product is the bandwagon approach.