A microphone is an example of A.
a program for digital art

B.
something that has nothing to do with art

C.
equipment used for digital art

D.
material used for traditional art

B. It has nothing to do with art.

A microphone is used to transmit any audio.

For example, if you were to be calling your friends using your phone, you are using a microphone to talk to them so they can hear you.

C. equipment used for digital art

Explanation

microphones are used to record music, which is a digital form of art.

hope this helps!