A, All about hip-hop music.
Choice A is a more broad research topic because just tells about hip-hop in general, rather than focusing on a certain aspect of hip-hop.
Choices B, C, D, on the other hand, focus more on how hip-hop is “[a] voice of outrage,” hip-hop’s rhyme and meter, and how hip-hip originated from block parties. They focus on specific things related to hip-hop.
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.
You can’t use third person without saying it’s your own research , but you can say “ people conducted their own research on this topic “
Answer:
20
Explanation:
every living organism has the same set of 20 amino acids
Having good judgment; fair and sensible
"no reasonable person could have objected"