Zelda is delivering her speech through an online conferencing program to an audience that may be in a coffee shop, at home with pets or children, in an office with phone calls and interruptions, etc. She is using a headset with a built in microphone to eliminate an echo and background noise on her end. She wants to eliminate any distractions that might annoy her audience or keep them from hearing her. What else might Zelda consider to minimize distractions caused by noise?

a$.$ Turn off the chat feature.

b$.$ Ask her audience to close all other applications on their computer.

c$.$ Ask her audience to mute themselves when the need arises.

d$.$ Mute all microphones before she begins speaking.