Answer:
I'm dying of embarrassment
my life is ruined
Since segregation laws did not provide equal protections or liberties to non-whites, the ruling was not consistent with the 14th Amendment. The others contradict the initial question in one way or another.
My best answer would most likely be a. Editing the language of your essay.
Editing the title is only a first impression and could be followed by a piece of writing lacking in flow. Editing punctuation would be my second choice, but it doesn't apply as much, in my opinion. And for the last choice, I'm pretty sure at least on of the three are practical options.
Short paragraphs, un varied punctuation, the redundant use of the subjects name
The answer which is an example of a theme with a dual nature is D. people who work hard learn values but may not prosper.
The other sentences are pretty linear and expected - a person works hard and is successful in life. D is somewhat different, which is why it has two natures, or a dual nature.