b.Bandwagon
Bandwagon is a persuasive technique and a type of propaganda through which a writer persuades his readers, so that the majority could agree with the argument of the writer.
A bandwagon is a trend that is so cool everyone wants to get in on it. If you start wearing a flowerpot on your head because everyone else is, you’ve jumped on a strange fashion bandwagon.
Originally, a bandwagon was a large wagon that did indeed carry a band. Now it’s an idea — people jump on the bandwagon when they hop on a trend. This word can be negative because it’s what people do only because it’s trendy.