Which one is not the reason for the need to briefly introduce the research topic before entering the

Which one is not the reason for the need to briefly introduce the research topic before entering the usual 3-move pattern in the introduction of an academic presentation?

A.Because it's not a good idea to keep your audience waiting for the topic-introducing sentence for too long in an AP.

B.Because the audience expects to learn about the topic of your report within a very short time at the beginning of your presentation.

C.Because only with a clear topic introduction in the first place,　can one intrigue the audience and then gradually guide them through the presentation.

D.Because presenting one's research topic in limited words is a challenging task, and the accomplishment of this task can demonstrate one's public speaking skills.

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