What is looping? the rerecording of sound first recorded on set the recording of sound on set the process of combining different sound tracks onto a single track the process of converting sound waves into electrical signals?

What is looping? the rerecording of sound first recorded on setthe recording of sound on set the process of combining different sound tracks onto a single track the process of converting sound waves into electrical signals?
Looping is the repeating section of the recorded sound material. So basically from the choices the most fit answer is the first one. The recording of sound first recorded on set. Since the section has to be recorded repeatedly it means that the sound has to be recorded already to be available for looping.

Ithink it's a) the user may use the song without the permission of the creator but only in certain circumstances