They are found worldwide in tropical and warm coastal waters, lagoons, and coral reefs.
To inform <span>the audience of Gies’s remarkable acts</span>
Well you have to research what and how it was in 1863 and see if you can get access any of Lincoln's writing and compare the two.
I'd say B and D. Elementary school reports don't necessarily equate to knowledge of a subject (and research on the branches of government doesn't help you know <em>how</em> to govern), so A is out. C is nice, but popularity and charm do not a leader make, he might have ulterior motives to being as such, maybe taking advantage of the power? B and D show things he has done that would give him useful skills in the position.
The argument relies on claims that are not backed up by facts
