extemporaneous presentation, what is the first step of the conclusion?

Question

A. Say, "In conclusion..." and continue with a summary of the body.
B. Review the main points with a simple, single sentence that names each main point with its one-word or two-word label.
C. Build credibility so that the audience knows they can trust what you have just told them.
D. Give a clever sentence that gets everyone's attention.

I have no clue

Answer 1

D needs to be in the introduction.

C needs to be in every paragraph, especially in the internal paragraphs.

A is very junior-high-ish!!

http://grammar.ccc.commnet.edu/grammar/composition/endings.htm

Answer 2

http://grammar.ccc.commnet.edu/grammar/composition/composition.htm

Study all three parts linked here.

Answer 3

Advertising, public

Answer 4

c