How did the term radio originate

euphonious name originates from a type of electromagnetic radiation discovered by the German physicist Heinrich Hertz. Originally, scientists used the prefix radio to indicate radiant or radiation—hence the designation of "radio-activity" for the alpha, beta, gamma and x-rays emitted by decaying atoms.

Ibelieve the answer  is b.

Hey user  he  bachs contributions to the baroque period were bassed of keyed instruments