A. In order to make an outline, you have to be able to identify important points. The other answers refer to how the speech would have looked or sounded, not its content.
The right answer for the question that is being asked and shown above is that: "A. an attention grabber." If the prefix intro- means “inward,” the exact meaning of the word introduction is an attention grabber. <span>The novel was so well written that it held the reader’s attention from the introduction to the conclusion.</span>
The first one because barren means empty, dead. A museum isn’t barren or empty, neither is a bustling city or farm land.