In a persuasive presentation, the speaker is always trying to influence the audience to change a belief or behavior. Thus the correct option is A.
The goal of persuasive speaking is to persuade an audience to change their opinions or actions. A speaker must create arguments that are persuasive to the audience if they want to persuade them.
In order to convince the people, the individual who is acting as a speaker should present unique ideas so that audience can develop a connection with them.
Therefore, option  A is appropriate.
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