Question

thomas edison is often credited with the first form of audio - based media with what invention?
phonograph machine
audion tube
terrestrial radio
wireless telegraph

Explanation:

Thomas Edison invented the phonograph in 1877, which was the first device to record and play back sound. The Audion tube was invented by Lee De - Forest, terrestrial radio has multiple inventors and developers over time, and the wireless telegraph was associated with Guglielmo Marconi.

Answer:

A. phonograph machine