Which of the following best describes the concept of "jumping on the bandwagon" in the context of propaganda?
1) Endorsing a product or idea by using celebrities or respected individuals
2) Creating fear or anxiety in order to persuade people to adopt a certain belief or take a specific action
3) Appealing to people's emotions in order to manipulate their opinions or behavior
4) Presenting only one side of an argument or issue in order to sway public opinion