Whether speech is going to be delivered before one or one hundred people, the speaker a. concentrate on getting everything out quickly. b. imitate the mannerisms of great speakers c. prepare their thoughts in advance d. use their biggest vocabulary to sound educated.

The correct answer is C. prepare their thoughts in advance. It doesn't matter how big your audience is - if you've been asked to speak, then you should prepare accordingly so as not to embarrass yourself. You shouldn't get everything out quickly - take your time and give a good speech. You shouldn't imitate anyone, but rather create your own style. You don't have to use fancy vocabulary in order to impress your audience - if your speech is good, they won't care about your choice of words.