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Consider the 4 methods for delivering oral presentations: Memorization, Manuscript, Impromptu and Extemporaneous. What are the differences among these 4 presentation styles? When would it be appropriate to use each presentation method? Next, recall a public speaking event you've experienced in the past (whether live, on television, or via the internet); note the subject of the event, the speaker, and the delivery method used. Why do you think the speaker used this method of delivery? Was this delivery method effective? Why or why not