Answer:
"A. The ease of difficulty with which the subject can be analyzed" would be the best option, since this allows the reader to see which genre "fits" best with the subject or theme in question.
Answer:The neighborhood is a diverse community of Irish Americans, Mexicans, South Africans, African Americans, and French Canadians who live and work there.
I believe the answer is: B.The Brown v. Board of Education ruling
In that ruling, the supreme court ruled that separating schools based on skin colour is deemed as unconstitutional because it specifically violates the 14th amendment, which states that minorities who had been freed from slavery in the past is guaranteed with citizenship rights and equal protection/treatment under the law.
I think it’s B? I might be wrong tho. Good luck!!