Which of the following is an example of a trade union within the creative industries?

The Broadcasting, Entertainment, Communications and Theatre Union (Bectu) is indeed an example of a trade union within the creative industries. Trade unions are organizations that represent the interests of workers in specific sectors. Bectu specifically represents professionals in the creative industries in areas such as broadcasting, film, and theatre, advocating for workers' rights, negotiating contracts, and providing support and resources to its members.

In contrast, while the Writers' Guild of America is also a trade union, it specifically caters to writers and may not encompass the broader range of creative professionals represented by Bectu. The American Film Institute is an organization focused on education and promoting film, but it does not operate as a trade union. Similarly, the International Federation of Journalists represents journalists worldwide but isn't limited to the specifics of the creative industries like Bectu. Therefore, Bectu's role as a trade union specifically for various roles within the creative sectors makes it the correct choice.