Wha should a speaker most avoid in order to give an effective speech a figurative language b formality c. the us of logos d. understatement of the ideas

D. Understatement of the ideas

Explanation:

If your giving a speech you should make sure you use the perfect statement for your ideas :)

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answer; (d) i believe the best answer is ; ///people said that man could not fly, but in 1903, orville and wilbur wright made the first sustained powered flight in a heavier- than-air machine;