Which sentence uses an action verb?
a.
the mall will be crowded.
b.
the family is fond of games.
c.
that song was my favorite.
d.
a comedian tells jokes.

The purposes of learning about your audience, asking questions before presenting, and analyzing the diversity of your audience is to be able to:
c.  acknowledge controversy and ask for careful consideration
b.  tailor your speech to meet the audience's needs
a.  understand the  basic characteristics of the audience
therefore, the answer is option d. all of the above. all the options given are the purposes of learning about your audience.