Explanation:

- A person who presents a radio or television program is commonly referred to as an Anchor. This is someone who leads, hosts, or presents shows, guiding listeners or viewers through the content.

- Comedian: This is someone who performs comedy, making people laugh through jokes and humor. They might appear on TV or radio but aren't primarily known for presenting programs.

- Choreographer: This individual designs and creates dance routines. They work with dancers to bring their vision to life, but they're not involved in presenting TV or radio programs.

- Actor: Actors portray characters in films, TV shows, or theatre. While they might occasionally host shows, they are generally not known for being program presenters.

Anchor