Question

the specialized audio files that are widely used for music and video are called. mp3 files. pcas. digital video files. audio - visual files.

Explanation:

MP3 is a widely - used audio file format for music. PDFs are for documents, digital video files are mainly for video, and audio - visual files is a more general term. MP3 is the most relevant for music among the options.

Answer:

A. MP3 files