Answer:
ok and thank you very much
― Mark Twain<span>, </span><span>The Adventures of Huckleberry Finn
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"That is just the way with some people. They get down on a thing when they don’t know nothing about it.”
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The funny thing is that for example and that example i'm going to use, you might also see it or experience, let's say when your talking to a friend, and were talking about a trouble someone caused you and while you were explaining it a random person who over-heard you got into the conversation to and started complaining without even knowing what or WHOM you were talking about :-/.
Twain might have used this because that's how some people are and the impact is that sometimes before you or anyone to be exact don't jump into conclusions or interrupt someone when there talking unless they want you to speak to them.
<u>A persuasive speech</u>.
A persuasive speech is defined as <em>a specific type of speech in which the speaker has a goal of convincing the audience to accept his or her point of view</em><em>. </em>Since what you're looking for is to <u>convince</u> your audience not to drop out of school, then this speech would be the most appropiate.
Definitely not an extemporaneous speech as this is carried out or performed with little or no preparation and that would not push your audience to want to stay in school. Not an entertaining speech because entertaining an audience is not the same as convincing them.
Therefore, you should go with a persuasive speech.
I think the best choice would be C.