Use of language/ conventions
Proofreading is what I would say I'm not sure what your answer choices are :)
Answer: C) by encouraging white leaders to allow nonviolent protests.
Explanation: In the given excerpt from Dr. Martin Luther King’s “Letter from Birmingham Jail” we can see the description of the black people's sentiments (resentents and latent frustrations) and how Martin Luther King says they will need to release those feelings. To conclude this claim he encourages white leaders to allow nonviolent protests, as he says in another part of that letter: "I have earnestly opposed violent tension, but there is a type of constructive, nonviolent tension which is necessary for growth."
D) excited
Predicate adjective adds more "spaz" to the subject.
Subject - Children
A. It does not maintain a single point of view.
The POV switched from 3rd person to 1st person and then back to 3rd person again.