The answer to your question is: Some strong examples that show why the subject is important to the narrator. Hope I have helped.
B is a fact because it's just one point, whereas A, C & D are a point with an explanation- more likely a persons opinion.
Hope this helps!!
Answer:
I knew then I had to have a house. A real house. One I could point to. But this isn’t it. The house on Mango Street isn’t it. For the time being, Mama says. Temporary, says Papa. But I know how those things go.
