Adapting to an audience before the speech means that speakers should attempt to do which three things?
a) Research the audience, adjust the content of the speech, and consider the audience's interests and background.
b) Speak loudly, use visual aids, and maintain eye contact with the audience.
c) Memorize the speech, rehearse multiple times, and use persuasive language techniques.
d) Stick to the prepared script, avoid audience interaction, and maintain a formal tone throughout the speech.
